義理の兄弟は彼の義理の妹を威嚇し、彼女はそれが好きです

A stepsister meets her stepbrother at a park and intimidates her by threatening to the the rest of the family she is a stripper at a strip club if she won't masturbate for him right then and there. She does and realizes later it really turned her on. So, she invites him to her bedroom after the stepfamily leaves and pulls out all her toys to masturbate for him again while she gives him jerk off instructions.