Step sister's surprise creampie

*We both talk in this one* What are you doing in here? Yeah I remember last night, what about it? I agreed to do anything if you kept the party a secret? Well... what do you want? You want...to have sex with me...is that a joke? You're a disgusting little pervert you know that? Your own step sister... No. Screw you. Wait! Put the phone down. Don't call them. This is ridiculous. I cannot get grounded right now. This is so stupid. How about a handjob? No, not in addition to sex idiot. Whatever. Fine. I'm not going to let you have the satisfaction of me doing anything besides laying there though. I just want you to cum and then get the hell out of my room. No cumming inside me. Just cum on my ass or something. After that, I never want to talk about this again.