Disclaimer: This is just fiction. The characters aren't real and their interactions are therefore divorced from realities and consequences. I don't advocate under-age sex or incest. I'm also not gay or submissive. I just find the ideas erotic from a voyeuristic perspective.
Leah herself can barely believe what she is seeing. She never fails to be amazed at the power her youngest step daughter has over people. She knows it starts with what hangs between her thighs, but it really comes down to her fearlessly precocious personality and natural drive to use what she is gifted with. She still remembers the first time Jamie had come into the room as an 8 year old to see her father and stepmother deep in the throes of sex; Leah on hands and knees doggystyle facing the doorway.
Leah nearly died of embarrassment but David didn't stop at all. He met his youngest's eyes and continued to fuck his new wife's against all her attempts to get away. Harder even. Jamie amazingly never moved, captivated by what she was seeing. Leah knew she shouldn't have been turned on but the cock inside felt like it had expanded even further and when he lifted her upper body off her hands, straightening her up and arching her back into his chest so that little Jamie could see her stepmother's hard cock bounce on every thrust, she gave in to the moment; cumming so hard that she nearly fainted.
Jamie, mouth open at seeing her stepmother not only being fucked, but also having a cock, never moved; and when 12 year old Ali seeing Jamie and the open door and hearing the noise from the corridor came up too, she grabbed her older sibling's hand to stop her running away so that they both just stood there framed in the doorway. Part shocked and part fascinated, staring at David and Leah facing them on bed.
Leah was now collapsed on her shoulders and face, her ass up in the air held there by David's vice like grip and impaled on his cock. She couldn't believe he was so turned on by his progeny watching him, but before she could think about it much more she felt herself being turned over and flipped on to her back, while David pulled out of her and stopped for a few seconds making sure the two children could see his full length and impressive manhood, before taking his phallus in his hand and jerking it, spraying copious amounts of thick cum all over their stepmother's cock, belly, and tits.
As she lay there trembling from the orgasm and effort, David beckoned to the two. "Come here girls." This was the first time he called them girls, but Leah only realised later what he was planning for his children. Amazingly they both responded, as if mesmerised by the situation. He beckoned them both to the bed. Still hard cock bobbing and covered in cum. "Clothes off".
"David, no. What are you doing?" Leah, still splayed out on the bed woke from her daze and tried to get up. David pushed her back firmly, slipping his hand between her legs and squeezing her scrotum painfully hard enough to keep her completely under control.
"Aaa a a h. Ok ok. Please baby that hurts"
"Quiet then". "Jamie, Ali, clothes off NOW."
Against all expectation the two youngsters stripped off, eyes still wide, taking in the situation. Leah could see immediately that Ali would pass easily as a girl. Ali was already effeminate. Shoulder length bleached blonde hair and a face too pretty for a boy, tallish, with a cute ass and small pink cock. Jamie was a different revelation. At only 8, she was small and completely androgenous, but she had an unnaturally large penis for her age. About twice as long as Ali's even though she was so much younger. Leah was soon to learn that she could already get erect too, and the four inch erection on a kid so small looked obscene even then. Ali looked overawed but Jamie had clearly gotten over the shock. "Daddy, mommy has a pee pee too"
"Yes honey, some girls have pee-pees too. Just like you and Ali. But they are not called pee-pees for mommys and daddys. They are called cocks." He held his rock hard penis in hand and pointed it at Ali. "And your Daddy has a big one that you should be very proud of".
Within seconds the two children were crowded around his crotch touching and fondling his organs while he proudly watched them, hands on hips. Leah could see that he couldn't take his eyes off Ali's smooth curvy young body. His hands were fondling her buttcheeks.
"Ali do you like Daddy's cock?"
The young pre-teen clearly couldn't get enough. She had both hands on it and seemed to be marvelling at its veins and all the hair around it.
"Kiss it for Daddy", he commanded. Both girls did as they were told, but while Jamie followed the literal directive, Ali amazingly needed no instructions. Within seconds she had taken him in her mouth and was sucking him like a lollipop.
"Uhhhmmm" he gurgled, clearly caught off guard by the unexpectedness of it.
Ali however wasn't done. They found out a while later that one of the neighbourhood boys had found his parents porn collection and Ali had watched loads, and fantasised about being fucked by a big man's cock. Now that the opportunity presented itself the hot youngster wasn't wasting time.
Still holding his cock Ali turned to David "Fuck me daddy". David needed no further encouragement. Within seconds he had his oldest's legs spread wide under him and was forcing his 9" cock in as far as it would go. At 12 Ali could only accommodate about 5 inches but that was more than enough for her father who erupted in minutes. "God you're so tight!"
Ali, now fully a girl as far as she was concerned clung to her father moaning in pain and pleasure, kissing him all over his face, still plugged by his large penis. Her own organ was erect but she was still too young to cum.
Jamie was completely fascinated by all this. Unlike Ali she'd never watched porn and this was all new to her. She watched all this cuddled up to Leah, who was still so stunned and so unexpectedly turned on by these events that she was pushed up against one end of the big double bed, her 7 incher rock hard and leaking precum copiously.
As their father sank to the bed still cradling his blonde oldest, Jamie moved to get more comfortable and her small hand brushed her step mothers erection. "Mom, you're leaking".
"Errr yes honey, don't worry, its natural. Yours will leak one day too."
"But mine leaks too sometimes when it gets all hard like this."
Leah and David looked at each other. No way could this be possible. She was only barely 8. But the 4" penis in front of them suggested a different story. Leah reached forward and took it in her right hand. Her left hand between her own legs.
"Mom, what are you doing!"
"It's ok honey I promise you'll love it. Does it really leak already?"
Leah took Jamies erection into her mouth and swivelled it round flicking its head. Jamie moaned at the sensation and began to stiffen. Her small body trembling. Leah pulled away and placed Jamie between her spread thighs, cock to cock and rubbed Jamies boy-cock into her thickly furred balls and shaft. The kinkiness of the situation began to overpower her when Jamie began to cum... thin spurts that shot out all over Leahs cock, balls and inner thighs, precipitating her own orgasm. Thick ropes of her cum shot out dribbling down her shaft and onto Jamie mingling with the young kid's own first eruption. Panting they fell back. Jamie on top of her stepmother, rubbing the slickness in between them.
...Remembering that first time, Leah continues to marvel at how things have changed in only 4 or 5 years. Only just a teenager, Jamie is almost her full height of 5.8", slim, still slightly boyish but sexy and feminine in all ways except the way she's dominating Bob, whose big manly frame is wrapped around her like Ali when David first fucked her. Without him even realising, in light of her phallic dominance, Bob's maleness has subverted and he is presenting himself to her; submitting; mutely begging to be fulfilled by the young boy-girl.
To be continued...
If you're female or shemale and this turns you on, mail me at k1nkymonkey@hotmail.com