You’re already buried balls-deep in your little sister, fucking her hard from behind while she’s face-down on the bed, when the door opens again.
Your other little sister is standing there.
She freezes for a second, staring at the exact scene: you slamming into one sister while cum is already starting to leak out around your cock from the first round. She doesn’t run. She doesn’t speak. She just steps inside and quietly shuts the door behind her.
You don’t stop thrusting.
“Look who decided to join,” you growl, still pounding into the one under you. “Come here. Closer. You’re going to watch what happens to dirty little sisters who leave their doors open.”
She walks over slowly, eyes locked on the way your cock is stretching her sister open. You grab the first sister’s hair, yank her head up, and force her to look at the one who just walked in.
“It feels so good,” she sobs, voice broken. “Big bro’s fucking me so deep—”
You pull out suddenly, a thick string of cum and cream connecting your cock to her used cunt. Then you grab the second sister by the wrist and shove her down onto the bed next to the first one.
“Both of you. Ass up. Now.”
They obey. Two identical positions side by side, asses raised, cunts on full display. You spit on both of them, then slap each one hard enough to leave a red handprint.
“You two are going to take turns getting ruined. And you’re going to watch each other the whole time.”
You shove back into the first sister without warning, burying yourself in one hard thrust. She cries out. You start fucking her brutal and deep while looking at the second one.
“Play with yourself while you watch. Fingers in that little cunt. I want to see you drip while I rape your sister right next to you.”
She hesitates for half a second. You reach over, grab her hand, and force two of her fingers inside herself.
“I said play with it. Don’t make me tell you again.”
She starts fingering herself, eyes glassy, watching every thrust as you wreck the first one. The wet sounds from both of them fill the room. You fuck the first sister until she’s shaking and begging, then pull out and immediately slam into the second one.
She screams into the mattress. She’s tighter, or maybe just more scared. You don’t care. You give her the same rough, deep strokes, one hand on the back of her neck pinning her down while the other reaches over and shoves three fingers into the first sister’s already-used cunt.
“Look at that. Both of my little sisters getting used at the same time. One on my cock, one on my fingers. You’re both just holes for big bro to ruin.”
You switch back and forth whenever you feel like it — cock in one, fingers in the other, then reverse — keeping both of them stretched and dripping. Every time one of them starts to cry harder you just fuck or finger them deeper.
“You’re both going to cum like this. Forced. While your sister watches. And when you do, I’m going to fill whichever cunt is wrapped around me.”
The first one breaks first, cumming hard around your fingers with a broken sob. You leave your fingers inside her through it, then switch your cock back into her and keep thrusting while the second one is still forced to finger herself and watch.
When the second one finally cums she almost collapses. You don’t let her. You yank her hips up higher and slam into her through the orgasm until you’re right on the edge, then bury yourself as deep as you can and unload, pumping thick ropes of cum into her while the first sister is still twitching beside her with your fingers inside her.
You pull out slow, watching your cum pour out of the second sister and drip onto the sheets. Then you shove the first sister’s face into the mess.
“Clean your sister up. Lick every drop of big bro’s cum out of her. And you—” you look at the second one, still shaking, “—you’re going to watch her do it while I decide who gets the next load.”
Both of them are ruined, faces wet with tears and spit, cunts leaking, completely under your control.
You stroke your still-hard cock and look down at the pair of them.
“We’re not done. Not even close.”