You walk in on your step-sister with her shorts down, fondling her own butthole. She rubs her fingers around the rim, tentatively smelling her fingers, then licking them, before slowly sliding the tip of her finger inside herself. The sensation turns her on, and she starts to rub her pussy. When she finally notices you, she freaks out and tries to deny what she was doing. Caught red-handed, she has no choice but to admit that she got turned on by her own stinky butthole! You ask her if she wants to take her anal exploration to the next level by getting fucked in the ass. Your step-sister is offended by the suggestion and wants you to leave, but you press the issue, insisting that she must want to get fucked in the ass since she likes fingering her butthole. She has no choice but to say yes after you threaten to tell your parents what you saw! Despite her initial reluctance, your step-sister absolutely LOVES taking your big, hard dick in her slutty butthole. It's even better than getting fucked in the cunt! Fuck your butt slut step-sister and give her a HUGE anal creampie, then let her lick you clean so she can taste her own ass on your dick.