My sis is naive and gullible. She's into mysticism. Today she made me ask questions to the spirits. I was angry at first, but then I thought of a way to punish her. I pretended to hear the answers from the spirits and told her she had to give me a blow job to get rich. She obliged, then I fucked her tight black pussy. I even cummed inside her. Punish her with sex and enjoy the reward!