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Chapter 15
by
grimbous
What's next?
Doubts
As the hem of your sister’s nightie glides upward you are treated to more and more of her super soft fair body. Her calves and thighs were so smooth and pale, her sedentary indoor lifestyle reflected in her flesh. When you see the knob of her dick reveal itself you realized that she was completely naked under the nightie. Up and up the hem goes revealing her curvaceous hips along with her heavy hanging cock, still soft but bigger than you at full mast. Next comes her pillowy tummy followed by full, round breasts. Her rack wasn’t the size of your Mom’s but they were a healthy set by any standard. Before your very eyes her pink nipples begin to firm up once exposed to the open air. She pulls the nights off of her and then clutches it to her chest.
“Drop it.” You say.
She lets go and allows the garment to fall in a pool at her feet.
“Move your hands.”
She does as you say, bringing her arms away from her tits and to her sides to give you the full view.
With a twirl of your finger you say. “Gimme a spin.”
Though she is blushing furiously she giggles and nods then does a slow 360 in place. Damn! What an ass. Full and round and smooth, not flabby but THICC. She wasn’t what you’d call ‘plump’ but she was squishy and soft in just the right way and in all the right places. A far cry from the tanned, lithe, fit physique of the athletic Allison. If she wasn’t such an introvert, or a mutant, your little sis would have been slaying out on the dating scene. God damn!
When she sees your lusty gaze she smiles the most precious, bashful smile. “You like it?”
“Mmm.” You nod. “Except for the big donger, not bad sis.”
Her smile melts and that ‘big donger’ visibly shrinks. “Um…yeah. It is kinda big, isn’t it.”
“Too big. Big and ugly.”
“Yeah.” She whispers. “But…it’s just the way I was born.”
“Yeah, you got that freak gene.”
“Jesse…I…I don’t like how you’re talking to me.” Her thighs press together and she turns and covers her junk with her hands. Her coy embarrassment was adorable.
“Ah, ah, ah.” You waggle a finger. “Let me see.”
She bites her bottom lip, her brows furrow, but in the end she obeys you and turns back so you can ogle her. “I think you’re being mean on purpose.”
“And what if I am?”
“Is…Is this how you treated Allison?”
“It’s how I treat all my bitches.” You say, your eyes drinking in her luscious curves. “You gotta learn, with Jesse it’s all about Jesse. You’re here for me.”
“Oh. I…I always thought you’d be…sweet and…gentle and…”
“A loser.” You finish her statement. “Nope, not this guy. If you don’t like it we can stop now.”
“Um…no. I-I’m fine.” Her body trembles, her nips now pert and firm just from being stared at. “I-If that’s what you like.”
“That’s what I like.” You say. “I like my sluts knowing their place.”
She swallows hard and nods her understanding. “Okay Jesse. If it makes you feel better.”
“It does. It certainly does.” You reach for your member…and find it already rock fucking hard.
She sees your arousal and nibbles on her plump bottom lip before peeping in a tiny voice. “If you want I could…suck…”
“Ew! You’re my fucking sister! Nasty!”
“Oh!” She bows her head in shame. “Sorry.”
“You’re as sick as the rest of them.”
“I’m sorry. I-I thought…I…I misunderstood…”
“I’m not like you freaks. I can get a real woman anytime I want.”
Elsie nods, her head bowing lower. “I…just wanted to make you feel good. I’m sorry Jesse.”
“You are sorry Elsie.” You rub yourself through your jeans. God it was nice to feel a full, straining, effortless erection again. “Why’d you even want this anyway? It isn’t for ‘girls’ like you. This is a real cock for real women. It might not be much in this family, but trust me it gets the job done out there in the real world.”
“I trust you.” She nods.
“You’re just gonna be some fap material. That okay?”
“Um. It’s okay. I-I understand.” She didn’t understand at all. You had the poor girl’s head spinning.
With each mean comment you found your indignant rage faltering just a little bit more. This was El! Your baby sister. Your best friend. The sweetest, kindest, most loyal person in the entire fucking world. What the FUCK were you doing? Wait. No. She’s a freak. A monster. She kept you down and kept you small, just like the rest of them. It was exactly this soft, weak, compliant attitude of hers that was the problem. You shake your head.
“Ahem! Lemme see your pussy.”
“Um…”
“Turn around, bend over, and let me see that sweet little cooch.”
She hesitates.
“Well?”
“Okay.”
As she turns around, you quip. “I guess it’s not so little huh? Taking all those monster cocks everyday it’s probably like a fucking wind tunnel.”
“I don’t…um…”
“Bend over. Spread it.”
“O-Okay.”
As she bends over and pulls her cheeks apart she reveals the finest little snatch you ever saw. The fleshy petals of her womanhood were small and delicate. Her pretty pink slit taking up the middle area between her perfect anus and her balls was half the length of Allison’s loose cunt. How the hell was Elsie handling those monsters of Fiona and Mom with a pussy like that?
“Is this what you want Jesse?” She whispers as she looks back at you around her shoulder.
“Hmm?”
“Is this what you like big brother?”
Is it?
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Runt of the Litter
You've got the smallest cock in your family...and you're the only man!
You're family has a few BIG secrets. A Futa-SPH- Story.
Updated on Sep 13, 2025
by grimbous
Created on Apr 20, 2023
by grimbous
You can customize this story. Simply enter the following details about the main characters.
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