I m at a friend’s costume party dressed as Wonder Woman with my older step-brother. I’ve seen him sneaking glances at me all night in my outfit. I can tell how much it turns him on. So I take him back to a bedroom to talk and tell him I want him to fuck me right now. He’s surprised and takes a little convincing. I start by giving him a blowjob. Then I strip out of my outfit and lay back on the bed to have him fuck his little step-sister (POV Missionary) until he cums inside me.
