Part One: Lisa

As I sat on the couch with Robbie nestled against me, I tried to understand the implications of Jim joining our family secret. Me and the kids had had a long time to sort things out, set boundaries, and know each other's quirks and responses. As much as we knew Jim as a dad and husband; a family man, he was a stranger to us in these other ways. One thing that I felt sure of is things would never be the same again. Not that I begrudged him his part, I just needed to figure out how to integrate him without wrecking everything that we had built. I was worried about jealousy and competition between the kids, in search of their father's favor. To be honest, I was feeling some of that jealousy myself. I had, of course, been shocked in watching Robbie and his dad. There was no way that this would work out if the two of them decided that they were gay. Terri and I were women, and as much as we enjoyed our games together, we needed our men!
As I sat mulling, a plan came to mind, risky maybe, but I knew that the rules were going to have to change, if we were to have any chance at all.
As I sat thinking things through, Terri came through the door looking like the cat who had eaten the canary. As she sat, cross-legged on the carpet in front of us, I surreptitiously gave her mound a once over. It was puffy and swollen. That, coupled with the self-satisfied grin on her face, aroused my suspicion.
"Terri", I began, "Did your father do anything to you upstairs?", I demanded. If he had fucked my virgin daughter, I was going to kill him!
Terri looked genuinely confused until suddenly understanding what I was asking.
"Jeesh mom, no!", she said, looking slightly embarrased.
About this time, Jim also wandered in to join us. He still looked somewhat sheepish and unsure of himself. Settling into the recliner, his discomfort was palpable. Terri threw him a big, flirty, smile which caused him to blush.
"Okay guys", I started, sitting up and turning to face everyone, "To make this work, some things are going to have to change. I need to talk about this with you and see how everybody feels". "Jim", I said, "Terri and I were a little surprised about what happened upstairs". "Robbie", you have always been precocious, but you really topped yourself tonight".
Robbie, interrupted, "What's premosious mom", he asked.
"Never mind", I said trying not to laugh. "Honestly, guys", I continued, "I don't really care if you two make out". "But", and here I paused for emphasis, "There a two women in this family, and we need some cock too!"
I glanced down at Terri to see a flush spread up from her neck to her cheeks.
"Now, I understand that we make our choices together, but I want to propose that, as of tonight, we abolish rule one: no fucking".
I leaned back on the couch, and stayed silent as I let that one sink in.

Part Two: Rob

Holy shit! Had I just heard mom right? My cock literally leaped to full attention, as if it were spring loaded. The sudden rush of blood from my brains to my boner was leaving my feeling dizzy. I chanced a look over to my sister who was lint picking the carpet and studiously avoiding my look. Holy shit!
I guess I must have been daydreaming, for a bit. When I came back to earth, Terri was talking.
"Sure, mom", she was saying, trying to sound casual, "I guess it's okay".
Pre-cum formed on the head of my dick.
"Robbie?", mom asked.
"What?", I stupidly asked.
"Are you ready to go all the way?"
The idea of my cock, finally, sliding into my sis's hole was almost enough to make me cum right there. Ready? There was nothing I wanted more.
"Uh, sure, if that is what everyone wants", I managed, sneaking another side glance at Terri.
"Jim", mom asked.
Dad just shrugged. We all understood that his big, rock hard, cock was answer enough.
"I think he means yes, mom", I piped up, anxious to move things along.
"Jim?", mom repeated, regardless of my effort.
"Yup", he said softly, "If everyone else agrees".
"Well, I guess that's decided then", mom said standing and removing her robe. "Rob, come here and stand in front of me", she commanded, seating herself back down on the sofa again. "Jim, pull the chair over closer. Terri, you can sit with your dad, but I want you to watch us".
Watch us? Did mom mean...? Holy shit! My first fuck was going to be my mom! I had always thought that it would be Terri, but looking at mom's big soft breasts, her full belly, and the way she was sliding down on the couch to thrust her bottom out toward me, teasing me with her beautiful hairy pussy, I was not about to object!
Terri was sitting on dad's knees, her head on his chest, while her hand explored his hard body. Both of them were watching us with rapt attention.
Straightening up, mom declared that the couch wouldn't do, and grabbing my hand, pulled me down to the floor with her. Spreading her legs wide, she pulled me on top of her. Then, with one hand, she reached down between us, and grabbing my cock began to guide it into her hole.
"Push, baby", she whispered into my ear, and saying that thrust with her hip to fully engulf me.
None of the rubbing, the blowjobs, the hands, and everything else we had ever done, had prepared me for the amazing feeling of entering my mom's beautiful cunt.
Looking into her eyes, I found myself saying "I love you mom", over and over as I began to pump.
"Oh, mom", I moaned, ready to release after only a few thrusts.
"Not yet, sweetie", mom commanded, and reaching down grabbed the base of my cock, encircling it with her fingers and squeezing hard so that the flow of semen could not escape into my cock. I bucked, pushing harder, seeking release, but her grip was firm.
The feeling of my mom's wet pussy, the love I felt looking into her eyes, and the aching I felt for release, threatened to overwhelm me.
Mom reached up, and wrapping an arm around me, pulled me down tight against her body. Underneath my chest, her breasts heaved. In this way, our faces were only inches apart. We stared into each other's eyes. A few soulful moments later, she whispered, "Now, sweetie!", releasing her grip on the base of my cock, and grabbing my ass to pull me as deep into her as possible. My cock began to shoot stream after stream of cum deep inside of her. It was like everything was emptying into her, my cock, my heart, my very life. I had returned to the place that had given me life, and emptied my life back into it. And as I emptied myself, something rushed in to refill that space, an intense love for my smart, special and super sexy mom.
As I lay, spent, on top of her, my face nestled besides her cheek, the smell of sweat and sex lingering, I whispered into her ear; having never meant anything as fully or sincerely as I did in that moment, "I love you mom".
She hugged me so hard that I almost couldn't breathe.

Part Three: Terri

As I sat on daddy's lap, his huge, fat, and very hard penis, rubbing against my leg, watching mom and Robbie. I was scared, excited, and confused, all at the same time. I could feel my pussy itch, needing; the lips parting on their own, the moisture dripping onto my ass cheeks. I was about to lose my virginity, but to Rob, dad? The idea of dad, made me feel shaky and faint, but I simply could not imagine his huge cock ever getting into my virgin pussy.
As Robbie finished with mom, she pushed him off, and turning slightly toward us, began to rub herself. Robbie's cum was running out of her pussy, making a trail all the way to her bum. As it dripped and ran, dad, gently pushing me off, knelt down between mom's legs and began to hungrily lap. Mom's fingers flew fast against her clitoris, now sticking out like a little cock. I watched as dad sucked her juices (mom was dripping) mixed with Robbie's cum. Mom's ass was rising and falling. Her pupils rolled back then her eyes shut.
"Fuck, Jim", she screamed, "I'm cumming!".
Grinding her pelvis into my dad's face, she began to convulse. Her thighs came together and gripped dad's head.
"Oh shit", she yelled, "Oh shit".
Bucking like a thing born wild, her body jumped in spasm after spasm of orgasm.
To be honest, watching mom, her full bodied womanliness, her hairy pussy; first fucked by Rob, then licked by dad, being brought to orgasm, I felt ugly, skinny, and undesirable. My tiny tits, my skinny ass, my stupid virgin pussy, my dumb, tomboy looks: how had I ever thought that dad would want me? I felt like such a fool!
After mom had somewhat recovered, she raised herself on her elbows, looked at dad, then Rob, then addressing dad said, "Well, our son is a man now, I think that calls for a drink!". Rob looked proud, as did dad. Mom looked done in, but excited. But as I sat in dad's chair alone, unnoticed, I just felt forgotten.
Part Four: Jim
My son, a man now! I looked over to Rob lounged back against the couch, enjoying the attention and kudos, drink in hand. I leaned over and gave him a high five. It was then I noticed that Lisa was silently seeking my attention, her eyes indicating behind me to where our daughter sat alone, and excluded from our celebrations. Turning toward her, I saw the vulnerability, the uncertainty, her sadness.
"Sweetie", I called her, "Come down here and sit with me. I miss you".
It was so simple, as if a cloud had passed and sunshine had lit up her heart. Leaping up, she settled herself onto the carpet between my outstretched legs, and, leaning back against me, tilted her head to look into my eyes. I cradled her further into me, grasping her small breasts as the back of her head came to rest against my chest. I kneaded her little titties; rolling the nipples between my fingers. My hard cock nestled into the small of her back. Releasing one of her sweet young buds, I brought my hand to her face, twisting it up toward me, and, bending down, kissed her on her lips.
It was as if my attention had dispelled her doubts, and like a gentle rain, had caused her to bloom.
"Oh, daddy", she offered between kisses, "I wish I were prettier for you".
"Come here, baby, turn around and face me", I told her.
Terri turned. I pulled her in to me so that her bottom was in the v of my legs, with her own, skinny, legs stretched so that they lay upon mine. Once there, I held her by her thin shoulders, keeping her at arms length, and holding her there, began to examine her as if she were a stranger. Her face was freckled, her hair lanky and held in two pigtails; more for convenience than for style. She had a slight overbite which showed when she smiled. My eyes traveled to her chest, taking in her boyish frame, and her two small breasts, then down, avoiding the distractions of her mound, to her gangly legs, a scabbed knee, all ending in feet too large for her, with toenails roughly cut. I suppose it is true that she lacked feminine roundness, neither would she be called pretty, but to me, she was beautiful. The life, sincerity, kindness and spirit in her brought her physical plainness to life creating a unique creature; both beautiful and lovable, and as my gaze finally returned to her mound, deeply desirable.
"You are breathtakingly beautiful", I said, looking into her eyes. "I cannot imagine you more beautiful".
A tension seemed to leave her as she listened to my words. A confidence seemed to fill her. I have always thought that one of the best things we can do in life is to make another person feel good. I could see that my honest words had had their effect, and it made me feel like a very good dad indeed.
"Daddy", Terri hesitantly asked, "Will you be the one?"
It took me a moment to understand what she had meant by her question. I looked over to Lisa who just nodded her head yes.
Honestly, up until that moment, I had not really considered actually making love to her!
"Are you sure that is what you want?", I asked, surprised.
"Oh, yes daddy, with my whole heart".
"You know, sweetheart", I replied, "Losing your virginity is no small thing. It should only be given to the man you love".
"But I love you daddy", she proclaimed, as if confused why I should not understand that.
In the meantime, Lisa had come over and positioned herself behind Terri. Gently, she pulled Terri down until she was lying flat with her head in her mother's lap. Rob had positioned himself beside us, kneeling, and stroking his already semi erect member. While Lisa stroked Terri's hair, I knelt to position myself between Terri's legs. Reaching my arms around her waist, I lifted her bottom up to rest against my legs, and began to rub the head of my cock against her little clit and opening slit, all the while looking into her eyes. A cinematic scope of feelings were showing through those windows of her soul, one moment frightened, the next wild, and the next suddenly showing a softness of love. A bead of sweat had formed at her temple, and I watched, fascinated as it formed a rivulet down her flushed neck.
The head of my cock rubbed up and down her juice slicked slit, and Terri began to make small moaning sounds, while bucking her slender hips toward me in encouragement.

Part Five: Terri

Mom pulled me back until my head was nestled in her kneeling lap. As I lay down, mom began stroking my hair and murmuring calming words. Inside, I felt a whirlwind of emotions. Part of me was scared witless. Dad's cock was huge. Surely, it would hurt me. Another part of me was pure animal, every rub of Dad's cock against my slit made me feel like scratching and growling and biting. Another part of me was a little girl, lying trusting in my mommy's lap. And yet another part of me was a woman worried that I would disappoint her man. So many mes, all swishing about until I no longer cared.
Through this riot of sensation, I became, suddenly, sharply focused on one thing, everything else disappearing in this singular intensity. The giant plum head of my daddy's cock was pushing against me, trying to enter. Oh fuck! He moved slowly, little pushes, back again, then another attempt. He continued to repeat these little probes, my cunt too tight, refusing him entry. Suddenly, a single thought, a single desire, a single urge took hold of me; I just wanted him inside of me at any cost. As he moved forward in another small probing thrust, I pushed my torso forward, driving my hips against him. Suddenly, we both froze. The head of dad's cock was now inside of me! For a moment we just stayed still, the walls of my pussy relaxing a little as the largest part of him was through. Daddy then began a gentle pushing motion, which brought him to my hymen, stretched and taut and defiant. But gentle pushing was not going to do this.
"Wait dad", I managed between panting breaths.
Using my elbows for purchase, I managed to raise myself up to a sitting position, pulling back at the same time, to release myself from his cock.
Dad looked horror stricken.
"Terri", he began, "I, I, have I hurt you?".
Raising myself to my knees I pushed hard against his shoulders, silently signaling that he should lay down.
Seeing the panicked look on his face, I assured him that everything was okay, but that this was something that I needed to do.
As dad lay flat, I straddled him, on my knees, my sore, but horny, pussy positioning itself over his pole. Using the example that Robbie had demonstrated upstairs, and placing my hands against dad's chest for leverage, I began to alternate between small bouncing and wiggling motions. A few such maneuvers, and I had sucked the tip of dad's cock back up into me. For a moment, or two, I simply made the tiniest up and down motions, just enough to feel the sensation of the head of my dad's cock rubbing me, as dad began to moan beneath. Then gathering my courage, I raised my ass one last time and drove myself down hard against his cock. I felt the ripping inside of me, as my dad's prick tore through my virginity. Tears sprang to my eyes, followed by another, more overwhelming sensation; the feeling of my dad's gorgeous penis deep inside my belly. I began to bounce hard, each time my dad's hips rising to meet my downward thrust. Inside, I could feel myself contracting, the walls of my uterus moving rhythmically in strong contractions, seeking to milk his pole of every seed and draw them up into me. My arms and legs were shaking and my breath was coming in ragged pants.
It was then that dad took control. Pushing my shoulders down to keep me hard against him, ensuring that his cock would not slide out in the transition, he positioned me; my back on the floor, and him on top. Reaching back he grabbed my ankles holding my legs up and apart. He then began to fuck me. No more gentle probes, no more tender tries. Dad began to drive his huge cock in and out of me like a demon possessed. Each thrust was hard and insistent. Each thrust deep, his pelvis bone banging against my clit. He grunted like an animal, sweat forming on his body, intent only on using my hole for his pleasure. There was a violence about it; animal lust caring only for its animal release. I was being taken and used and nearly fainted from pleasure. I screamed as I began to cum. My hands on dad's ass, nails biting into him, as I urged him deeper and harder. I was cuming, but like nothing I had ever imagined before. As many times as I, or mom, or Robbie had brought me off before, this was different. My body was a living thing of its own. Deep inside me a million years of evolution was doing its own work, milking my father's prick, hungrily milking his seed in the most fundamental of human desires; the desire to carry on the species.
And then, as I came in waves and waves of greedy contractions, I felt it. Dad, suddenly stopped, caught like a grimacing statue in a frozen moment, he began to come. Something between a roar and a whimper escaped him, and I could feel his seed rippling up his cock to spill inside my greedy tummy. For a moment I thought I would faint, and then I simply died, to be reborn a woman.

Part Five: All

We are glad to report that a few years down the road, we are all happy, horny and well. Jim deciding that he did not want to spend large amounts of time away from us anymore, bought a local garage and car parts store nearby. Robbie works there with him and seems as happy and carefree as ever. Terri, went to college, is engaged, and planning on starting a family of her own. Lisa, has taken up part-time book-keeping, and is excited to know that her sister's kids will be coming to stay for the summer.

The End

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