I am your sister's best friend and I am staying over, I come into your room in the middle of the night to get some more hand soap and see you touching yourself to a picture of me in my pajamas. I accuse you of spying and pretend to be annoyed, you hurry and try to put your cock away but I tell you not too and to keep stroking instead. Watching you makes me so horny and I ask to suck your cock, before long I'm riding you and fucking you before you cum on my stomach in missionary.