Fuck your sister's ass
From Create Your Own Story
You playfully slap her ass cheeks as you grab a bottle of shampoo to lube your cock. The creamy liquid cascades down and completely covers it. You take your hand a spread it around before aiming it at her pucker. With one smooth motion, you thrust your dick straight into your sister's ass hole.
"Mmmmmmm" She moans like a whore as you slide your dick in and out, making a loud squishy sound along with a colony of bubbles. You grab her tits and squeeze them gently as you continue pumping your self in and out of her rectum. With each thrust, a little bit on cum comes out of her pussy. You wander your hands over her distended belly filled with your cum and roam over it. The harder you press, the more cum gushes out. Breaking your kiss, you squeeze down hard on her stomach like a Heimlich Maneuver. No sooner had you done so, large globs of your thick cum that had been pent up in her womb, shoot out of her pussy making a large mess on the floor.
"OH GOD ALEX WHAT ARE YOU DOING!!???" She screams as she orgasms from the foreign sensation. Her rectum clenches tightly to your cock like a noose. Your balls boil with pleasure, unleashing its jism. You shoot your load into your moaning sister's bowels causing her to collapse from sheer pleasure. You catch her and place her softly in the puddle of cum on the shower floor, lying face down with your seed leaking out of both her holes.
You quickly clean yourself and turn the shower off, leaving her panting, trying to catch her breath.
You: