(Stepsister Butt Grab) Sneaky Bedtime Ass Slap Turns Into

It starts innocent enough... He's walking past her room, sees her bending over in those little shorts. Can't help himself, gives that stepsister's butt a quick, firm grab. She jumps, turns around all pissed at first. But then she sees his hard-on pressing against his pants. That changes everything real quick, she doesn't yell. She just smirks, pulls him into the room before anyone else hears... Says something like 'you started it.' Next thing you know, her shorts are on the floor and she's pushing him down on the bed. No foreplay, just straight to business... The pace is rough from the get-go. She climbs on top, guides his cock inside her with one hand still gripping her own ass where he just grabbed it. she's riding him hard, bouncing up and down like she's trying to prove a point.