"Sweetie, step-mommy has a very special surprise for you... we're going to make your step-sister your little sex slave!" your step-mom calls your step-sister over and begins to give instructions. She obediently bends over and step-mommy lets you finger her and spank her ass. "How does that feel sweetie? step-Mommy's been wanting to train you two for a while" you're directed to start fucking *carefully* as step-mommy says your cock is almost too big for your step-sister's hole. Your little step-sister shrieks as you push yourself inside, but soon begs for her step-brother's cock "good girl you love your step-brother's cock don't you? step-Mommy's going to think about this when she touches herself later." You're told to work up a nice big load for step-mommy and blow it deep in your step-sister's tiny pussy. step-Mommy gives a countdown from 10 so you and your step-sister can cum at the same time.