Since we were very young, my sis Allie and I were very close.  Always, we bathed and showered together, so we both got to admire how our young bodies developed as we got older.  My tits were quite well developed at 14, and Allie’s at 13 were coming along quite nicely.  Showering together had gotten hugely more interesting when we got all soapy and slippery,  rubbing our tits and pussies together.  Finally,  one night, after we had showered and had gone to our separate beds, I could not get to sleep and I decided to sneak into my sis’s room.

My body moved forward as if pulled by some unseen hand, and I crawled onto the bed behind her, as silently and unobtrusively as a cat. Then, breathing hard and unevenly, I got down on my stomach and lowered my head in the direction of her ass. Her smell was intoxicating—why had I never realized how wonderful a woman could smell? I realized that one of the smells was perfume—Obsession. I recognized it because I wear it, too, but it smelled different on Allie, or maybe it was only because she had sprayed it between her legs, and I was smelling it now mixed in with the natural scents of her pussy and her ass…. I was helpless to do anything except move my face closer, so that’s what I did, until finally I was as close to her ass as I could get, without actually touching her. I breathed in her scent, and now I was grinding against my hand on the bed, trying to play with myself without jarring the bed and waking up Allie.

She seemed to be sound asleep, so I thought that maybe I could just give her the tiniest kiss. I gently pressed my face into the shadows of her butt and planted a delicate kiss around her asshole, letting my tongue slide around the smooth, wrinkled skin with only the barest of pressure. She tasted wonderful, her ass tasted sweet and soft and feminine. I thought about my brother, and what he would think if he could see me like this, with my face stuck inside my sister’s ass as she slept, and it made me grind against my hand even harder. I was amazed at how much I loved her scent, how dizzy it made me, and I whimpered a little as I masturbated, now totally disoriented by all the sensations.

Finally,  I couldn’t take it any longer. I pushed myself away from Allie and fumbled around in the drawer of the nightstand until I found what I wanted. The vibrator buzzed to life, and I sat back against the headboard and spread my knees, keeping my feet pressed together in front of me. I could see Allie starting to wake up next to me, but that only made me hornier. I pushed the tip of the vibrator into my pussy, gasping as it opened me up, and then I pulled it free and dragged it up to my clit. I circled it gently around by swollen button, and now I was shaking and sweating and panting. I stuffed the vibrator back into my pussy, and this time I pushed it all the way up inside me, holding it there as I worked my clit with my hand.

Allie was sitting up in the bed by this point, watching me.  At first I thought she was going to run out of the room, or gasp in shock at what I was doing… and then I saw the motion of her arm, and I knew that she was touching herself as she watched me. She was mostly in shadow, since I was blocking some of the moonlight in the room, but my eyes were on her anyway, and she must have known that I wanted to see her because she moved out from the shadows and kneeled right in front of me on the bed, only inches away from my knees.

“I want to see,” she whispered, and she leaned closer on the bed. As she moved forward she brought one hand down on my knee to steady herself, and my body reacted to her touch as if I’d been electrocuted.

“Allie….” I whispered back, but I didn’t know what to say. I didn’t know what I wanted. My pussy was throbbing and my clit felt as if it was on fire, and all I could think of was Allie’s smell.

Suddenly she reached out her arm, and then I felt her cool, soft fingers pressing down on the hand that I was using to massage my clit. She followed the motion of my hand, trying to feel what I was feeling, and she lowered her body down between my legs to get comfortable, keeping one of her own hands underneath her body and between her thighs.

She was content to just feel me playing with myself, but suddenly I wasn’t content. I lifted my hand and before she could react I clamped it down over hers, forcing her onto my clit. She whispered my name and I moaned, keeping her hand in place, and then she began to rub me gently, letting me guide her hand with mine.

“Touch me,” I said, a little louder now. “Please feel my pussy, Allie….”

Her head was getting lower and lower, and soon her face was almost right up against me. She took her other hand out of her cunt and used it to grab hold of the end of the vibrator, and then suddenly she was doing everything, fucking me with the vibrator and using her lovely fingers on my clit, and I put my hands around her face as I watched it all, thinking that I was more turned on at this moment than I’d ever been in my entire life. My whole body was sheathed in sweat now, and I could feel the sweat on Allie’s arms where they pressed up against the inside of my thighs.

“Becca,” she whispered, “I want you to come, Becca….”

That was all I needed. It was as if I was hit with three or four orgasms at the same time, not one after the other in a nice smooth progression but all at once, and I bucked against Allie’s hand and squeezed my legs together, inadvertently pushing my sister’s head down into my pussy. My thighs locked around her head as the next wave hit me, and then the vibrator was being pulled out of me, and then… oh christ… then Allie’s mouth was on me, sucking on my clit, and I clamped my legs around her even tighter and started shaking. Without thinking, I started bucking my hips, thrusting my pussy up to meet her tongue and her lips.

“Oh, god, Allie,” I panted. “Eat me… please eat me….”

She moaned and the vibrations echoed through my clit and through my whole body, and then suddenly I was turning her on the bed, pushing her onto her back with her head still trapped between my legs, until I ended up on top of her. “Don’t stop eating me,” I told her. “Don’t stop, don’t fucking stop….”

She needed no encouragement. I slid forward and backward on her face, making it easy for her to alternate between sucking my clit and lapping at the juices that were flowing out of my cunt. Now that her hands were free, she grabbed hold of my ass, and whenever I pulled away from her mouth she pulled me back down. I stayed on top of her that way, fucking her beautiful mouth with wild abandon, for what seemed like an eternity. It was as if a complete stranger had taken over my body, and I heard the stranger telling Allie to keep eating that pussy, to lick that cunt, to suck the cum out of that fucking pussy.

After an endless time, I lifted myself off her and turned to face the other direction, still straddling her head. Before she could say a word or ask what I was doing, I pushed my ass down into her face, spreading the cheeks so I could bury her inside me. Her tongue found my asshole immediately, and I started moving my hips around in a slow, tight circle, grinding my ass into her face and letting her pleasure me, forcing her to do what she’d done to me in my dream. And if, as in my dream, our parents had suddenly appeared at the foot of the bed, it would have only made me grind against her even harder.

“Good girl,” I said, looking down at her naked body sprawled beneath me. Her hand had found its way back to her pussy, and she was feverishly playing with herself again. “Suck my ass, Allie,” I said. “Kiss my little asshole and spread your legs wide for me… show me how much you like to suck me….”

Allie’s legs opened and her knees came up into the air, and her fingers started moving faster. I knew she needed some release, and I planned to give it to her. I let her fuck my ass with her tongue for another minute, and then I lowered myself onto her body, pressing my slick, sweaty breasts against her abdomen. Then I lowered my head and opened my mouth, and dragged my tongue down, very slowly, from her pretty little navel to the top of her neatly trimmed pubic mound, and then down even farther, until I was inside the lips of her pussy. I put my mouth around her clit and she cried out, her whole body stiffening beneath me. I closed my lips over the swollen nub and swirled my tongue across its surface, sucking gently but persistently, and she responded by squeezing her own thighs together around my face. Her aroused scent and the incredible mental picture I had of what we were doing was making me feel crazed, and I started lapping at her wet pussy and feeding on her clit with a kind of gentle, savage fury. I wanted to suck every ounce of juice out of her body, I wanted her to explode in my mouth just as I exploded in hers. I slid my hands under her ass and used one finger to play with her asshole as I ate her, and Allie responded by doing the same thing to me, and now we were both devouring each other and neither of us could see or hear anything because of the sweaty thighs that were keeping us both locked in place.

Suddenly I felt, more than heard, Allie’s low-pitched, animal groan, and she began pumping herself against my mouth like a wild horse as she began to come. Her mouth slipped off my pussy as she lost herself in the orgasm, but I started to come again anyway. Tears of exhaustion and astonishment were running down my face and mixing with Allie’s sweat and cum, and I licked up all of it, everything that was within reach of my hungry lips. The orgasm blinded me with its power, making every nerve ending on my body ultra-sensitive, so that even the slightest touch from Allie, anywhere on my body, was enough to trigger another exhausting wave. I imagined myself unloading in her mouth, feeding my cum to her, and I sucked her dry as I pictured and felt her doing the same to me.

Eventually we both relaxed our thighs enough to ease the grip we had around each other’s heads, but otherwise we didn’t move for a long, long time. I thought she had finally fallen asleep, and then she startled me by getting up on her hands and knees on the bed.

Becca,” she said, her voice hoarse and shaky.

“Sweetheart,” I whispered back, touching her face in the semi-darkness.

“Please… fuck me.”

For a few seconds I didn’t say anything, I didn’t move or even breathe. Then I sat all the way up on the bed, so that my face was only inches from hers. I said, “Okay, Allie.”

I climbed off the bed and went to the closet, then turned on the light so I could find the box that was hidden in the very back. I opened the box and found what I needed—a strap-on kit that mom had thought she had hidden.  It came with a variety of different cocks, and I picked one that was realistic and a good size, not terribly long but quite thick. Then I turned off the light and quietly closed the closet door.

As I turned and approached the bed, holding both the cock and the harness, Allie said, “Wait.”

She was kneeling on the bed, facing me, her body backlit by the moon. Just seeing her silhouette made my nipples crinkle again.

“What is it?” I whispered. “If you’re afraid, Allie….”

“It’s not that,” she said. Her voice was strange and desperate as she added, “Turn on the light, Becca.” When I hesitated, she said with conviction, “I want you to see me. I want you… to look at my body while you fuck me… to look at my face… to watch me come….” She lifted her head a little, and her voice was plaintive as she said, “Do you want to see me, Becca?”

I was shaking, now. “More than anything,” I said. I leaned over and fumbled with the lamp beside the bed, finally locating the switch, and then suddenly the room was filled with soft, golden light.

I turned and looked at Allie. Still kneeling in the same position, her arms were down at her sides, covering nothing, and her thighs were slightly opened. Her face was sweaty and flushed and her gorgeous hair fell in a tangled clump across her shoulders. I was filled with something like awe at how sexual she looked, how raw and perfect and uncorrupted.

Her mouth was open a tiny bit, and her eyes were on mine. And because I knew she wanted me to look at her—really look at her—that’s what I did. I moved my eyes down her slick, golden body, taking in her exquisite breasts and her painfully hard nipples, noticing the pink flush that spread across her chest as she saw my eyes travel down her body. Her chest moved in time with her quick, shallow breasts, and I followed a single bead of sweat as it glided down from between her breasts, across her abdomen, and then dissipated as it approached her bellybutton. My eyes kept moving down, and now I was looking at her lovely, delicate pussy. The few hairs around it glistened with sweat and saliva and her own cum, and the lips were pink and inflamed. I gave it one last, lingering glance, and then I moved my eyes onward, staring at the taut muscles in her thighs as she tried to keep herself still on the bed. I could see the muscles twitch under her moist skin as my eyes moved across them, and I felt my own legs start to weaken.

I climbed on the bed and Allie moved aside to give me room, sliding down onto her butt and opening her legs. With her mouth still slightly open and her eyes glassy, she watched me strap on the harness and then attach the prosthetic cock. She looked up at my breasts, so much like her own, and then finally up at my face. I slid forward on the bed, getting closer to her, and she laid her head back on the pillow and spread her legs even more, as wide as they would go. She closed her eyes and put her arms out beside her, palms and fingers digging into the sheets as she waited for me to fuck her.

I guided the head of the cock toward her, letting it rest for a moment against her still swollen clit. Then I rubbed it gently from side to side, very slowly, and Allie’s grip on the bed sheets tightened.

“Please,” she whispered.

I moved the head down a short distance, until it was right up against her wet, aching hole. Then I pushed forward about an inch, amazed at how much I was enjoying this…. I let go of the shaft and put both of my hands down on the bed around Allie’s body, and as I brought my weight down on her she started to shake. I was worried that it might be too thick for her, but she suddenly arched her back and said, “Do it, Becca. Just fuck me!”

Overcome with emotion, I slid all the way inside her. She cried out as the fat cock split her open, but almost immediately she started moving against me. She wrapped her legs around my hips and pulled me forward, and then my mouth was on her mouth, finding and devouring her tongue, even as I lifted my ass and started working the cock in and out of her pussy. I found her hands on the bed and lifted her arms so they were pinned beneath me, and I pressed my entire body up against hers, making sure that both our clits were being stimulated by the contact. The kissing alone was making me dizzy, and the feeling of Allie’s legs clamped around my butt as I fucked her was unexpectedly amazing….

I kept my mouth on hers and felt her moaning around my tongue, and I felt her body start to shake beneath me. She started bucking wildly against me, and I responded by fucking her more roughly, using shorter, faster strokes instead of the long and gentle strokes with which I’d started. I let go of her hands and she immediately wrapped her arms around me, pulling me in close, and then her hands were all over my back and my sides, and I felt her struggling to feel my breasts, which were mashed up against her own, so I pushed myself up on my arms so she could reach them.

I closed my eyes as she found my nipples and played with them, and I knew that I was probably fucking her too hard now but I couldn’t stop, and then I opened my eyes and she was looking back at me, and she said, “Almost there, don’t stop, Becca….”

I lowered my head to kiss her again, and then I simply lost myself in our fucking, and we were turning on the bed now, and suddenly I looked up and Allie was on top of me, her hair falling down in my face, pumping her little ass up and down on the cock. She brought her head down and began sucking one of my nipples, making me shiver, and when she lifted her mouth I grabbed her head and brought her back down over my breast, and then I was lost in ecstasy at what she was doing to me, and at the way she looked as she fucked me, as I fucked her.

Finally I lifted her head and brought her mouth to mine again, and I felt tears coming down her face. She pushed her tongue deep into my mouth, her whole body trembling on top of me, and then I knew she was coming. I wrapped my arms around her and kept her still, gently moving the cock around inside of her, and then she broke free from the kiss and cried out again. My own orgasm finally hit, and Allie lowered herself onto my body so I could squeeze and clutch her as I rode it out.

A long time later, after the trembling had subsided and we were both breathing normally again, Allie finally rolled off me. She didn’t move away, though, keeping her body turned and her breasts pushed up against me. And then she started to giggle. I looked at her face and started laughing, too, and I don’t think either one of us knew why were laughing.

“When I talk to Mom and Dad,” she said, her eyes sparkling, “I’m going to tell them that we really bonded this week….”