A very taboo thought clouded her mind, something she could not shake off. She knew jacking off wasn't going to solve her erection problem, and the closest person she thought of to get rid of it was her own mother. She covers her erection with her small underwear and only leaving on a shirt to cover up her chest, and walks out to head towards the master bedroom.
"Hey mom..." Jennifer weakly calls out after knocking on the door that was half open. Her mother was laying upright on the bed reading a book, wearing a comfortable pair of sweat pants and a white t-shirt to relax more on her day off of work.
"Yes Jen?" Her mother looks up from reading and looks at her daughter, quickly noticing the small bulge in her pants. "What the- Sweetie what's that in your underwear?"
"It's my dick mom," Jen replies after closing the door behind her and shedding off her underwear, her 4 inch cock springing free. "I just got it recently, and I can't get rid of it by masturbating. Can..Can I fuck you, mommy?"
"Oh yes sweetie I will help you," Her mother casually replies, taking Jen aback a little by the sudden eagerness. The mother then takes off her shirt, exposing her natural, slightly sagging double D cup breasts before taking off her sweat pants to reveal her hairy bush covering her pussy. "It's very strange for girls to have a penis, but I will love you regardless."
"Thank you so much, mom!" Jen said with joy in her eyes, quickly climbing on the bed and watching her mother spread her legs out for her daughter to get between them. She couldn't tell if it was the lust or love that was controlling her actions, but Jen did not care at that moment. With not wanting to bother with foreplay, Jen slowly slides her 4 inch cock into her mother's hungry folds, causing a moan to escape from both their lips. "OOHH GOD MOM!"
"Fuck me, Jennifer!" Her mother moans and wraps her legs around her daughter, being loud as she wants. Her husband was at work, her son at soccer practice and her other daughter was over at a friend's house. "OHHH MY BABY GIRL'S COCK FEELS SO FUCKING GOOD!"
"Holy shit, mom!" Jen moans and pistons into her faster and faster, their sloppy sounds of their hips slapping and Jen's balls slapping against her mother's ass cheeks. The lewd moans and cursing from the parent's mouth was increasing the arousal on Jen. "F-Fuck! I'm fucking my own mother! Holy shit it feeels so goooood!"
Jen's cock became ultra sensitive after ten more fast thrusts into her mother's pussy, feeling a orgasm fastly approaching. "Mommy! Mommy I'm gonna cum! I gotta cummm!!"
"Do it, baby!" Her mother moans, feeling her own orgasm coming close as well. "Cum for mommy! Fill your mommy up!"
Jen gave one last hard, deep thrust and moans with the older female, shooting her thick strings of cum into that wet pussy. She could feel those inner walls clamping tighter around her small cock, making sure it squeezes every drop of semen from her. After they both ride out their orgasms, Jen pulls out and collapses at her mother's side, her face smothering against that huge breast. "Oh mommy..."
"Oh my baby girl..OH!" Jen's mother moans and felt pressure building up on her crotch, her a penis slowly growing till it was the same length as Jen's. It throbs at full erection as a small pair of balls grows under it and above her pussy, completing the short transformation. "O-oh dear, sweetie...I have a cock like you now~"
"Mom...I'm still horny." Jen whines as her own cock was slowly growing erect again, watching her own mother grow a cock like her's was a major turn on.
"Mmm I think we should share this with the rest of the family." Her mother begins stroking her new length, giggling from such a new sensation.