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I come into my step-brothers room asking if he can watch me do my Mime routine I've been practicing for my new job at the comedy store. I notice him start to get a boner as I'm miming and call him a pervert. I threaten to tell all his friends that he's horny for his step-sister unless he agrees to do whatever I say. I walk over and pull down his pants and start sucking his cock. After a few minutes I want more. I take off my shorts and reveal a hole cut in my pantyhose I want him to fuck me. I say that I'll keep it our little secret if he obeys. He fucks me missionary and when I'm about to orgasm I feel him cum inside me against my will! I can't believe he just came inside his own step-sister! I threaten to expose him for the pervert he is unless he agrees to continue helping me with my mime routine.