Friends Little Stepsister Wants Your Dick

You go over you your friends house and are greeted by his stepsister, she tells you she's not sure when he'll be home but you're welcome to hang around for him. Waiting on the couch, she begins doing yoga in her mini jean shorts and making small talk with you. The poses start off innocent enough until she begins to pose more and more provocatively and eventually starts rubbing her pussy through her shorts in front of you. She asks you to meet her back in her bedroom where she then fucks you in multiple positions, afterwards she tells you that her stepbrother can't find out about you two but she'd like to fuck you again.