I hadn't been home all semester, but I was back from college for winter break. It had been a long finals week followed by an all day drive home yesterday, Friday, just to find that my dad, Jim, had given my bratty new stepsister Lisa my basement bedroom. I considered the basement my version of a man cave and the bedroom down there was the one I had grown up in ever since we moved here after my parent's divorce. Now I had the guest bedroom which had been Lisa's room when her and her mom moved in after the wedding. No real explanation. It just was told to me when I came home.

But then, last night I figured out what I thought was the real reason for the move. The guest bedroom was upstairs and shared a wall with the master bedroom and let's just say they must have wanted some privacy by moving Lisa downstairs. I didn't get much sleep from all the noise of my dad and my new stepmom going at it. Evidently, they were still in their honeymoon phase even though they got married over the summer and so were now a good six months into their marriage.

They tried to be quiet, and I could have easily tuned it out and fallen asleep given how tired I was from semester finals followed by the long drive home. Heck, I had grown accustomed to falling asleep to such noise as I often heard the sounds of sex coming from the other dorm rooms around me. But these walls were thinner than the dorm ones were, and once the two of them really got going, the thumping, moaning, and groaning grew louder than I was used to. I couldn't really blame my dad for giving it to her long and hard as my stepmom was a real looker. Long dirty blond hair with deep blue eyes and let's just say she was full bodied with plenty of great curves to enjoy.

I gave in and started to stroke myself as I imagined it was me making Monica moan while pummeling my hard seven inches into her. Since her and my dad started dating less than two years ago, she had fueled more and more of my teenage MILF fantasies, so this wasn't the first time I had masturbated to thoughts and visions of her. My fantasies had grown to new heights in the spring and summer this year when she started sunbathing by our pool in her bikini to work on her tan for the wedding. Now here I was laying in the guest bed wacking off, listening to them, and picturing her once again on the lounge chair by the pool. Lucious full lips. Smooth skin. Big, soft titties. Deep cleavage. Womanly hips. Big round ass.

Every once in a while, they tried to reign themselves back in, but there was no holding back as they reached their crescendo. As they came together, Monica let out a series of yelps in unison with my dad's loud grunts as he filled her with his spunk. I could tell the yips were her attempt to hold back the scream she really wanted to release. As my dad emptied his load into her, I released mine all over my stomach picturing her accepting my full load in her womb.

It quieted down. I cleaned my naked body off with my underwear and thought now I can get some sleep. But just as I started to doze off, they started back up. I put my pillow over my head and tried to muffle the sound and drift off. It wasn't easy, between their noises and my mind's images of a naked Monica, but eventually my tiredness won out. However, I was woken up a couple of more times during the night. Where did they get the energy? Aren't they old?, I asked myself.

In the morning, my alarm went off much too early for my liking. Shunning the rising sun, I stumbled out of bed up to get ready for a full day of work at the local mall. My job during the break was at a clothing store that I had worked at during high school and up until I left for college, so no orientation needed. I knew what to do and would be able to jump right into the holiday shopping rush.

I knew my dad and Monica would be still be sleeping after their bedroom gymnastics of last night, but as I trudged down the stairs, I saw that Lisa was already up and just finishing her bowl of cereal at the kitchen table. I still was not used to her living in the house, plus I forgot that she had a job to go to as well, so she had to get up and get moving too.

I grumbled to myself, 'now I have to deal with her this morning.' It wasn't that she actually ever acted particularly bratty. I was just not happy with the changes to my life that my dad's new relationship and now marriage had caused. I was happy for him, but for me, I was now stuck with a new stepmom and stepsister. If I had bothered to look deeper, I would have found that the real problem was me. I was selfish and just wanted my home life to stay the way it had been. So, through no fault of her own, I included Lisa as part of the problem. I was short with her and labelled her a brat in my mind.

Even though we were pretty similar in age, I chose to see her as younger and thus immature. We didn't know each other prior to our parents dating as we went to different high schools. When I wasn't being a selfish jerk, Lisa and I actually could have a decent conversation now and then, but I never really tried to develop a friendship. I was skeptical of a 'blended' family and frankly was used to being an only child, so the idea of sharing a home and sharing my dad wasn't something I embraced. As she was an only child as well, I presumed she felt similarly. I kept it friendly for my dad's sake but didn't see any need to go beyond that. Plus I didn't really have to, as I was going off to college and she would do the same next year as she was now 18 and a senior in high school so we wouldn't be around each other that much.

As I slogged into the kitchen, she immediately piped up, "You look awful."

"Thanks, and good morning to you too," I replied sarcastically. "Next time don't hold back, just tell me what you really think."

"Sorry!" she said quickly and sincerely. "I wasn't trying to be mean. I was just caught off guard by how tired you look. You look absolutely wiped out. Sit down and let me get you some breakfast. I made some coffee too," she said as I plopped down. "They were at it again, weren't they?" She handed me a cup of coffee. Then before I had a chance to reply she continued, "I really am sorry! That's why I was basically forced into asking to move into your room. I didn't do it to take over your space. I just needed to get out of that room and get some sleep," she continued as she scurried around the kitchen getting me a bowl, spoon, cereal, and milk. "I don't think they know how thin that wall is and how the sound travels. I can move back into that room whenever you are home from college, so you can have your room back."

Well maybe she wasn't so bratty after all, I thought. She was being very nice to me this morning with the breakfast and coffee, and she didn't want to move into my room, she needed to. She seemed truly remorseful, so I told her, "That's okay, but I appreciate the offer." Plus, it would have been hard to be mean to her and make her move when she looked so damn cute even in her scrubs. She worked at the local clinic.

I let her know that I understood the change in rooms, and I would survive as it was only going to be about a month before I went back to school. If it got too bad any night, I would just go sleep on the couch or at a friend's house. Unfortunately, I couldn't go stay with my mom because she was off traveling the world with her rich new boyfriend, so I didn't have any other options.

Lisa said was kind of stuck as well, as her dad was a serious jerk with a drinking problem among other things, so she definitely couldn't stay with him.

We were in this together, but at least now we had something in common and it was actually kind of comical as we thought about the problem with the guest room. We ended up having a chuckle and nice little talk. Yep, she wasn't bratty and might actually be kind of sweet if I gave her a chance. And the more I looked at her this morning, I realized how much she had changed just in the last four months. She was taller and looked and acted more mature. I noticed how much she was starting to look like her mom. Her growth spurt was not just in her height too. She also had definitely 'developed' just since the summer, if you know what I mean. Her scrub top billowed out pleasantly, while the backside was rounded out nicely as well.

I was actually disappointed that our chat (and my spying her 'new' body) was cut short as we both had to get going. Maybe we could be friends after all, I thought. It was hard to say for sure, but at least now I didn't see her as a bratty little kid who stole my room. No, perhaps she could be alright if I gave her a chance. We smiled and said our goodbyes as we headed off to our jobs.

The workday turned out to be a killer. Not only was I tired before I even got to work, but when I got to the mall I found out that we were short staffed due to the flu going around. With it being a Saturday in December, the mall was packed all day long and I ended up running ragged all day. I was supposed to be done at 5 but ended up staying until close because of all the shoppers and the short staff. My boss was grateful I came back from college and was willing not only to work, but to stay late.

When I headed out to my car, I was wiped, but I saw I had text from my buddy, Brad, who lives across the street from us. He was inviting me over to play video games. Despite how I felt, I couldn't pass that up, because the games came with having a couple of beers from their fridge. His parents were chill that way and after the last few days I really wanted a few cold ones. So when I got home, I parked at home and walked to his house for some gaming and drinking. I texted my dad to let him know where I was and that I would be home late.

By midnight I was having trouble staying awake. Usually game night went much later, but just two beers had taken their toll on my tired mind and body and so I headed home numb and exhausted. I walked in the door to a quiet house. Everyone was already in bed, and I planned to do the same as quickly as I could.

I headed to my room, stripped off my clothes, and climbed into bed naked, like I always slept.

"Oh Todd, you do like me."

Oh shit! I jolted out of my weary state as it hit me like a sledgehammer that I had gone into my old bedroom out of years of habit, completely forgetting that it was now Lisa's. But before I had a chance to say anything her lips were on mine in a deep passionate kiss.

She was an amazing kisser. I went from startled and frozen to being pulled against her body by her embrace. My senses that had been nearly in a coma were now on high alert.

Her lips were soft and full. She was running her hands through my hair. I was melting into her when my mouth opened slightly, and my tongue began to try and invade hers. My mind was exhausted mush, but my body was wide awake on autopilot. Her mouth opened to accept my invasion, and our tongues began to play together.

We moaned into each other's mouths before coming up for air.

My body was now wide awake, and the fog began to clear from my brain. Tiredness had left my body rapidly and my mind was catching up as I spoke out urgently, "But, Lisa..."

"Shhhh. It's okay, I know we may be step siblings, but we aren't really related and we were young adults by the time are parents got married so I don't even think of you as true stepbrother."

"But, Lisa..."

I got cut off again. "No more talking. I know NOW you were just being distant because our parents were together, but I am glad you got passed that. I just didn't expect you to jump into my bed naked." She ran her finger along my stiffening rod. "I thought you might ask me out first."

"Lisa..."

"No, not that I am complaining at all! I am just surprised, but pleasantly so..." she grabbed ahold of me and began stroking me as she slithered down my body, "... in a BIG way. Yes, a very good and big surprise indeed!"

With that she took my dick, which had begun to harden from her touch, into her mouth. "Oh, Lisa!" I whimpered. My resolve to tell her that I had climbed into her bed out of a mistaken habit was gone in a flash. It took only a couple of licks and sucks for me to realize that this girl, no, this woman, was talented. She got me fully erect in a hurry and then sucked me in deeply. She gagged slightly and moved back up my shaft before trying again to take in all of me. She couldn't quite do it without out choking but she did not let that deter her from pleasuring me.

She took her mouth off of me and moved down further to lick and suck my balls causing me to groan deeply. Then her tongue slowly worked its way back up my popsicle. When she got to the top, her tongue tickled the sensitive skin just below the crown eliciting another moan from me as well as a leak of pre-cum.

She immediately slurped it up. "Mmmm!" she voiced in a sexy, throaty exclamation. She kissed my cockhead before playing with the hole with the tip of her tongue.

"Tasty!" she proclaimed as more pre-cum oozed into her mouth. It must have spurred her on, because she engulfed my rigid member quickly and went further than last time before backing off and sucking just the head while wrapping her hand around me and jacking me off.

I could only handle so much of her intense vacuum and tongue combined with the rapid stroking of her hand. I lifted her head off me and pulled her up for a kiss. Then I rolled her onto her back and straddled her as I reached for the nightstand lamp. I needed to see her.

I turned on the light and the aggressive Lisa suddenly turned shy as she looked away. I grabbed her chin and turned her face back to me and kissed her tenderly drawing forth a sigh. Then I withdrew and looked her in the eyes. She did not turn away this time. "Is the light okay? You are gorgeous and I want to look at you."

Without a word, she simply nodded up and down slowly. I sat away slightly and pulled her up to a sitting position. Without breaking eye contact, I reached down to the bottom of her oversized nightshirt and gradually began to tug it up.

As I pulled the shirt up and over her chest, out popped her exquisite, firm, large grapefruit-sized breasts with just the slightest amount of jiggle. I gasped causing Lisa to sit up straighter and slightly thrust them out towards me. They were pale in color compared to her surrounding olive skin. Her mocha-colored nipples were hard, long and pointy. They sat proudly stop silver dollar sized areolas on the upslope of her tits.

I sat there captivated by them, my mouth slightly gaped open until the movement of Lisa raising her arms broke my trance. All my raspy voice could choke out was, "Beautiful," as I lifted my oogling eyes from her chest to her bashful face which displayed a sly smile.

I knelt up as I pulled the shirt over her head. When she could see again, my extended pole was now directly in front of her, and she was now the one who gasped. The deep red head topped the long, veiny, and rigid pole. Below, my two walnut sized nuts hung in a distended dark sack. Before I even had a chance to sit down from my kneeling position she grabbed ahold of my rod, "Talk about beautiful!"

I looked down just in time to see her lick more pre-cum from my hole. "Ohhhh Lisa!" She looked up at me with dreamy expression, opened her mouth, and pulled the head into her oral cavity and swirled her tongue around me. I wanted to throw my head back, but I couldn't tear my eyes away from the vision -- Lisa gazing up at me mischievously, the head of my cock in her mouth, and below that her naked tits standing firm, large and proud from her chest. I burned the image into my memory.

She started to suck and stroke me again. "I am too close," I blurted out as I pulled back.

She smiled at that, knowing how she was getting to me, "Someone liking this?"

"More than I can put into words."

"Good."

I leaned down and kissed her again as I pushed her flat on her back. I laid down atop her, my bare crotch directly atop her panty covered slit. I could feel the heat and moisture seeping through the thin fabric separating us as she parted legs a slightly so my legs could slide down between hers. She was really getting into the kiss when I moved from her mouth leaving her yearning for more.

I kissed her nose before sliding my tongue down her lips, past her chin, and onto her neck. She arched her head up fully exposing her neck and I began slowly kissing and licking it. I pushed her arms above her head as my mouth worked my way to the right side of her neck until I ultimately made it to and nibbled on her earlobe.

Then as I began to work my way back across her neck to her other earlobe, I supported my weight on my left forearm as my right hand gently traced a path down her extended left arm, then along the ticklish edge of her armpit, before my fingertips grazed the side of her of breast. She was almost purring as I lightly teased her smooth, warm skin.

I looked up to see her face was flushed and her eyelids fluttering. It was a mixture of delight and desire. Even though I wanted her anticipation to build until she couldn't take it anymore, I was so anxious to experience more of her body that I began to move down her.

As my mouth took as similar path down her right arm as my fingers had just done down her left, my right hand moved up her left tit to tease her rock-hard nipple. "Ahhhh fuck," she yelped as I simultaneously latched onto her large pencil eraser shaped teats -- one with my fingers and the other with my mouth. My fingers gently twisted her left one as my teeth nibbled at the right one. Her hands shot to the back of my head and pulled me to her. I opened my mouth as wide as I could taking as much of her tit meat as I could and began suckling at one breast, while my hand now mauled her other mound.

I could have stayed playing and nursing on her amble mammaries for a long time, but after a bit, she had other ideas. Her hands changed from pulling me to her chest to pushing me further down her body. I tried to kiss and lick while slowly making my way down the underside of breasts and down her tummy, but she wasn't having it. She was pushing me in urgency.

I was able to stop long enough to kneel up and grab the sides of her now soaked panties and pull them off. She was completed naked now and her legs came back down and parted. "Wow" I blurted out after her final covering was now gone.

Her hands flew to her crotch to cover herself up, "Sorry I wasn't planning on this and didn't shave."

I pulled her hands away, "So sexy," I said, my voice dripping with lust.

"Really?"

"Oh yeah, I like it more natural," I licked my lips involuntarily. Even though I tried to convey my sincerity in my voice, I knew she was still uncertain, so I continued, "I think pubic hair is womanly and sexy. Having a full bush above your pussy draws my eyes to your treasure." She had to know I was sincere about that because my eyes hadn't left the V at the top of her legs. "And your actual treasure, has hardly any hair on it so it does not hide how wet and puffy you are. Plus your clit is poking out so, so sexily." With the couple of girls that I had been with so far in my young life, it was nearly impossible to find their clits. They were so small. I was looking forward to nibbling on the bean I saw on Lisa.

I finally shut up as I realized I had rambled on, but it was hard not to as I was captivated by her sex.

"You like my clit too? It's bigger than any of my friends. I thought it might be freaky."

Now I finally broke my stare and looked up, "You and your friends compare clits." She looked embarrassed at her disclosure. I didn't wait for an explanation from her, "I think all of your body including your bush, your pussy, and your clit is perfect. Let me prove it to you."

With that I practically dove into her crotch as I pushed her long smooth legs out and up. There was no teasing or playing around slowly. I went at her vulva full speed. I started by licking her juicy lips from bottom to top and then flicking her nub with the tip of my tongue. A tongue that was now saturated with her juices.

"Fuck yeah!" was her response as her hands returned to my head shoving my face fully into her mound. She relented only enough so that I wouldn't suffocate and I could work her over with my mouth and tongue. I nibbled on her clit as promised before licking and sucking each side of her slit separately. Back and forth I went from side to side and from lips to clit. Her fluid was flowing freely now as I lapped away.

Her flower had bloomed open exposing her bright pink core. I reached up and spread her distended lips further apart so I could dip my tongue into her. I extended and flicked my tongue as deep into her as I could. She tasted so sweet. I was a man possessed. I wanted more and more of her and to taste every drop she would give me.

As I worked to please her, Lisa's hands left my head and clenched the sheets on either side of her womanly hips. I pulled back and pushed her legs up even further so I could have another look at her fully exposed and open womanhood. It was erotic and captivating. It was then that I noticed some of her nectar had flowed down to her pink and puckered asshole. I didn't want any of it to go to waste, so without a thought or any hesitation, my tongue went to her rosebud. Upon first contact she let out a yell from both the shock of my tongue on her other hole and from the climax it set off. She covered her mouth as we both hoped neither my dad nor her mom heard her initial howl.

More liquid ran out of her and down to me as I continued to lick her ass spurred on by both the sweet tasting stream as it ran to my tongue and by her reaction and resulting orgasm. She was squirming but I was holding on to her thighs tightly.

As her eruption continued, I decided to back off with my tongue and let free her left leg so I could stick the middle finger of my right hand inside and finger fuck her. Maybe I would get lucky and hit her g-spot, I hoped. I am not sure if I did or not, but my finger either extended her orgasm or set off a new one. It was hard to tell which, but either way she was writhing in an intense release. She eventually tried to push me away and I relented. She spasmed for nearly a minute as I sat back on my haunches and watched the beauty of her coming down from her peak. She was flushed. There was a sheen over her whole taut exotic body. Her chest was heaving her tits as her breathing was heavy but ragged.

She had only slightly calmed down when her eyes shot open. I thought I might be in trouble for pushing her too far and too long by the way she set her jaw and glared at me. In a firm, commanding voice, she barked out, "Todd, I need you in me! You are going to make me a woman tonight!"

What the fuck? Did I hear her right? No way was she a virgin. She knew her away around a cock too well to still be pure, plus I felt no barrier when my finger had invaded her. "You are a virgin?" I uttered in stunned disbelief.

"Don't worry, my mom's toys have broken the seal so you don't have to do that. I just haven't had a man's 'toy' inside me, YET. Now shut up and take care of that for me. You will be my first." Not a request but a demand. No choice. No playing around.

"Me? Why?"

"It's been you that I wanted from the first time I saw you. I didn't think it would ever happen though. Our parents being together seemed to ruin that possibility. But not now. Now I know that you wanted to be with me too and you finally came to me tonight. No more words. We can talk about all of this afterwards. Take my virginity!" She was getting pissed or frustrated that I was hesitating. But now as I looked at her, not her body, but her as a person, I realized I wanted her, all of her, as much or maybe even more than she wanted me. I was determined not to just get inside her but to show her how much I wanted her.

She was so sexy. It would have been so easy for me to give into my animal instincts and get in quickly and pound away at her, but I wanted this to be special for her (and for me). Her first time should be more than a mere wild physical coupling. It needed to be a memory she would cherish forever.

I denied her and myself no longer. I laid myself down on top of her; my erection nestling atop her moist, hairy snatch. I kissed her slowly and deeply, showing her how much I cared for her, and dare I say was falling in love with her. She returned the kiss with the same depth and tenderness. I could feel her frustration with me leave her mind as our bodies softened and melded together. She knew that I would sate her desire soon.

One of my hands roamed to a breast tenderly, as she ran her hands from my hair, down my back, and then grabbed my butt pulling me tight to her as we moaned into each other's mouth. We continued to make out and get to know each other's bodies better before I pulled up from her. "You are so beautiful and special," I softly proclaimed with complete honesty as I looked into her eyes. We were both beyond ready for this to happen, "Do I need to use protection?"

She shook her head firmly, "No. It's safe and I want to feel you. Nothing between us." So, I reached down to my crotch just as she did the same. She backed her hand away and let me take charge as I wrapped my hand around my erection. I had never been so hard or full before and my manhood was pulsating in excited anticipation.

I ran the head of it up and down Lisa's slit a few times prompting an anxious murmur from deep inside her. I stopped to slap it gently on her extended and hard clit twice. She bit her lip. It was now the moment she had waited for and which I wanted more than anything I had wanted before in my life.

The tip of my sword pierced her, a satisfying "Ahhh" escaped her lips in pleasure not pain. What she had craved was finally happening. She beamed happily as I slowly buried myself inside her inch my inch. We stared longingly at each other. Her womb was warm and moist and silky smooth. I throbbed inside her sheath as I felt our hearts beating together excitedly.

When out pelvises finally met and I was fully inside her, I sighed and said what came into my mind without a second thought, "Oh yeah. Perfect. Like you were made for me. I want to stay inside you forever."

A happy tear came to her eye, "I want that too. Stay inside me."

I wiped away her tear, then kissed her before starting to glide in and out of her. At first it was slow small strokes and I began to massage her tits as she played with my butt. But then our excitement began to build and so did my pace. She began rocking her hips to meet my thrusts. My pelvis was banging into her clit adding to her stimulation from my piston moving inside her.

"Oh, this is so much better than I ever imagined," she cooed.

That only urged me on further. I wanted to not only please her but to make her toes curls. Just like I was selfish about my life before, in the few other times I had engaged in intercourse, it had been primarily about my gratification. But not this time. Not with Lisa. I was completely focused on her satisfaction, her pleasure, her fulfilment. I ignored my physical need for my own release.

I slid back and forth inside her. I kissed and sucked on her nipples. I stroked her skin. Her impending explosion was building inside as I felt her heart race and her breathing quicken.

I picked up the pace. The sounds of her copious pussy juice squishing between us and the slapping of our pelvises together joined with our vocal ministrations to create a symphony of our lovemaking.

"Oh Todd, I am going to cum! Yes... yes... yes!"

I reached underneath her to her ass and I drove into her with all my might. For a split second I realized that I hadn't even seen her naked butt yet, but it felt as amazing as I knew it must look. The skin was soft and tender, but the meat was full and tight. I grabbed it firmly and rode her to her climax.

"AAAAHHHHHHHH!" She screamed at the same time as I growled out a series of grunts, each of which were in unison with shots of ejaculate into her welcoming uterus.

Lisa went limp and I collapsed on top of her. Both of panting as our hearts beat out of our chests. I finally rolled us as one onto our sides and our eyes opened.

"Is it always this amazing?" Lisa queried.

"You are assuming that this wasn't my first time." I poked back slightly but also teasingly. This whole time she had acted like I knew what to do.

"No, I am not. I overheard you during the summer when you were bragging to Brad about losing your virginity. So now answer my question."

But I kept up my farce, "Maybe that was it though, I was just bragging but really hadn't done anything."

"So I was your first?" she asked skeptically.

I decided to end it and come clean, "No, you were not my first, but you were the best."

That brought a punch but also a huge grin before she asked, "Really, the best? No more teasing me."

"Okay, no teasing. The absolute best. Not even close!" I gave her a beck on the lips. "And to answer your first question, no it is not always this amazing, but who knows, for me, if it is with you, it might always be."

Somehow her smile got even bigger and I got a deep tongue filled kiss, before she announced, "Well, you will get plenty of chances this break to find out."

"That sounds like the best present I could get for the holidays!"

"Me too. You were what I wanted under the tree this year, but you unwrapped yourself early for me," she chuckled.

I twinged and wondered if I should come clean about my mistake, but then again maybe it wasn't a mistake. Maybe my subconscious finally took over when my conscious mind shut down and this is what I had wanted all along but was too self-absorbed to realize it. I chose to keep it to myself for now. Maybe someday this would be a funny story to share, but now was not the time. I simply replied, "Sorry to spoil the surprise, I can wrap myself back up."

"Don't you dare! I like you wrapped but you're even better unwrapped," she smirked as her hand snaked down to my limp penis coated in the combined fluids of our coitus.

"I like you that way too," I replied as I licked one of her now softened nipples while running my finger through her seeping hole and then her bush.

We talked for a while, but as I came down for our sexual high, my energy was zapped and I fell asleep mid-sentence. I had told Lisa I needed to go back to my bed before our parents woke up, so she set an alarm for early morning as I slept cuddled up to her. When the alarm went off, I looked at the clock and it was earlier than I expected, but a still naked Lisa told me she did that on purpose because she wanted another round with me before I went upstairs. She said the tenderness I showed the first time was great but she wanted me to make her make noises like my dad made her mom do.

To put it mildly, I was more than happy to try. The few hours of sleep I did get had restored some of my energy and we both knew we could sleep in as the clinic was closed on Sunday and the mall did not open until midday.

I put my energy to good use as we tried lots of positions -- missionary, cowboy, reverse cowboy, on the side of the bed, on a chair with her straddling me, then I stood up with her on me (I am glad I worked out this semester), I backed her up against the wall. Eventually, we ended up doggy style in the middle of the bed. Her ass that had felt so good before, was just as amazing to view. As I took her from behind and without even thinking, I gave it a little whack. She yelped as it sent a tremor through her body, "Oh yeah! Slap that ass! Fuck, I felt that all the way through my pussy!" I guessed it was a mini-orgasm that she felt, and by her response, there was no need to apologize for not asking first, so I followed that first one up with a few more.

This whole time, no matter the position, my cock pounded her as best it could and whenever I could reach her clit, I strummed it. I was trying to get us to replicate the sounds Monica and my dad made and I masturbated to. I thought we met or topped them. I was definitely glad they were two stories above us on the opposite end of the house.

After a series of orgasms for Lisa along the way, I announced my pending eruption, "I am going to cum."

Lisa pulled away from me with a pop, spun around, grabbed ahold of my quivering appendage squeezing it to hold back my cum, and looked up at me erotically and announced in a sultry voice, "I want you to cum in my mouth. I want to taste you."

Again, I could not deny her as she softened her grip and began sliding her hand up and down my stick pointing the tip at her now open mouth and extended tongue as she continued to look into my eyes. It only took a couple of strokes and a grunt, "Uuuggghhh," for me to begin coating her tongue. Some shots missed their mark, and before I was spent, she had some of my jizz on her nose, cheek, and chin before the last dribbles fell onto her tits.

She showed me her full tongue before swallowing every morsel and then began gathering the remaining seminal fluid from her face and body with her fingers and slowly licking them clean. It was a most erotic display. She knew it too, as my cock bobbed with each finger licking.

I reluctantly headed off to bed after a brief cuddle and make-out session. I realized as I climbed up the stairs I had already fallen hard for my stepsister.

Epilogue (read only if you want to know the rest of our story)

The rest of the break, we hung out together and considered ourselves dating, but never told anyone. I ended up getting her a nice necklace for a present and she gave me two video games I wanted, even though we both knew that our real presents were each other.

Out of bed, we talked a lot and got along just as well as we did in it. One thing I found out in our conversations was that it was because of a friend that she was so good with a cock. She had a close gay friend who hadn't come out yet. When Lisa turned 18, she decided she need to get wiser to the ways of the world. She wanted a safe way to learn with someone else who was of age but who wouldn't want more from her than some of her experimentation.

He was more than happy to let her 'experiment' with his equipment but had no urge to fuck her. They started off with her just looking, then moved to touching, then hand jobs, then licking, then sucking. It was almost like he tutored her as he told her what felt good and what didn't. It also helped him to learn what he should do if he ever got a boyfriend, so it was beneficial for both of them. But that was as far as it went. She never even let him cum in her mouth. I told her that she needed to tell him thanks from me for the superb guidance that he had given, as I was now the beneficiary of it. She laughed, but then said she would tell him.

Whenever I could, I snuck down to 'our' room and we continued to expand our sexual repertoire. Unfortunately, the break came to end too quickly and I needed to head back to school, but not before I professed my love for her and her for me.

It was tough to be so far apart, and we started to make plans for spring break. We hatched a plan for her to get a group of her girl friends to go a place at the beach for the week and separately I would get my group of my guy friends to do the same at another place but the same beach. Then we could ditch our friends and sneak off to a hotel.

To put our plan into motion, I worked it out with my professors to miss one Friday and so I could come home for the weekend. It was a lot of traveling for a short visit, but Lisa and I were really missing each other, plus we wanted to propose our spring break plans to my dad and Monica in person.

We sat on one side of the table and they on the other, as we presented it to them at dinner right away on Friday night. We spun the plan as a way we could look out for each other, so they wouldn't have to worry about us. They were quiet and turned to look at each other. The silence as they stared unwaveringly at each other did not bode well I thought. Lisa and I grabbed each other's hands secretly below the table and squeezed tightly as we felt our plot to be together slip away.

Finally, Monica nudged my dad. They seemed to be reading each other's minds. My dad's eyebrows raised as if questioning her, and she gave a subtle nod. They turned to us and my dad spoke up, "This sounds like more of a plan for the two of you to sneak off and continue your romance."

Lisa and I immediately pulled are hands away from each other and our mouths shot open as shock went across our faces. Did they really know about us being a couple? Or were they toying with us? Their stoic look gave us know clue, so I decided to play dumb as I stuttered out, "What are you talking about? We aren't together. We are just friends. We are stepbrother and stepsister after all." Lisa shook her head in frantic agreement.

Monica paused for what seemed like an eternity before replying, "Do you think we are dumb or just oblivious? We've seen the way you to are around each other. The way you look at each other. How much time you spent together over the break and now talk on the phone all the time."

My dad chimed in, "And we heard certain things during the break coming from the basement that sounded like a lot more than just friends hanging out together."

Oh shit, we were truly busted but just sat there now in embarrassed silence not knowing what to say or do. They had heard us having sex!

We were left hanging for a bit before Monica let us off the hook, "It's okay. We think it's great actually that you are together. Todd you are just like your father and Lisa, you have a lot of me in you." Then she looked at my dad, "It took us too long to find each other, but Jim and I were made for each other, so you two may be as well and you found each other much sooner. We love you both, so long as you are good to each other and can be mature enough to stay friends if it doesn't work out, we don't have any problem with you dating... and 'doing other things'."

We breathed a sigh of relief and fessed up. We admitted we really didn't want to go on spring break with our friends, we just wanted to be together. They said we could just go as a couple or save our money and hang here at the house. We said we would talk about it.

The rest of the meal was wonderful as spoke openly about all kinds of things. We even decided as a group that Lisa probably got her mom's libido and I got my dad's prowess. It was weird at first talking so openly with them like friends rather than parents, but it ended up being very liberating.

After dinner, when we got done cleaning up, I grabbed my bag to head up the stairs. It was then when they said I could stay with Lisa if I wanted to. Our parents are so cool! We were shocked but excited.

I turned and took Lisa's hand to head to the basement when my Monica said, "Why don't you two stay in the guest room since it has a roomier queen bed rather than the smaller full sized one in the basement?"

I'm not sure why such a devilish thought instantly popped into my head, but without a second thought, I decided to turn the table on them and try to embarrass them the way they had done to us. I looked back at them, "Well, you weren't the only one who heard certain noises over winter break! The wall between your room and the guest room doesn't provide much sound proofing. Why do you think Lisa wanted to move to the basement? So we think it is best for everyone if we stay down in the basement. No need for any of us to have to listen to each other or compete to see who does 'things' better."

Lisa and I both tried to squelch our laughter as we quickly headed to the basement, leaving them aghast and speechless.

All of us ended up laughing about it the next morning at breakfast. We also all looked like we hadn't gotten much sleep and teased each other about that as well.

The weekend turned to out completely different and so much better than Lisa and I had planned, hoped, or expected, but it was great. It was just too short.

After that weekend when we had gotten it all out in the open, things was much easier and relaxed. Lisa and I fell deeply in love and were free to express it in front of our parents. Jim and Monica's honeymoon period didn't seem to end, and their love for each other continued to grow like ours.

By spring break, the wall between the master and guest room had insulation and sound deadening drywall added, while the basement bed was upgraded to a queen. All of us were able to laugh about those changes and what had brought them about. Now Lisa and I had two rooms to chose from for our sexual escapades. We used them both at various times.

The next year Lisa joined me at college. Our parents agreed we could live together as long as we kept our grades up and agreed to meet and hang with friends, not just stay to ourselves. Those conditions were no problem as we were both good, focused students and we were both quite social.

During the winter break of Lisa's sophomore year and my junior year, I proposed and Lisa said yes. Shortly afterwards, I decided that I wanted, no needed, to clear my conscience and confess to Lisa the secret of my bedroom mistake that led me to be naked in bed with her and ultimately us to be together. For some reason, I was nervous but she ended up laughing. She thought it was exceptionally funny and laughed uncontrollably.

Even though I had to admit it was humorous, it was at my expense. But in the end, I joined in laughing with her at my faux pas from all those years ago. When Lisa finally gathered herself, she kissed me and told me she didn't care how or why it happened or what brought us together, she was just glad we ended up together. I agreed whole heartedly. We couldn't wait until we were husband and wife.

Lisa wanted to tell Jim and Monica my story, but I was embarrassed. She kept pestering me and told me it was too good of a story not to tell them. Finally, I relented and we all got a another good laugh at my expense. Super cool parents once again.

Lisa and I were married that next summer.

After I graduated, I stayed in school one more year to get a master's while Lisa finished up her bachelor's degree.

Now we are living back in the same town as our parents and heading over to tell them they are going to grandparents! I am sure they will be super cool grandparents too!

My mistake turned into a love story. It was the biggest and best mistake of my life.