ฉันเย็ดตูดลูกพี่ลูกน้องสาวเพื่อแลกกับการปล่อยให้เธอออกไปกับแฟนใหม่

My stepsister asks me for permission to let her go see her boyfriend, I'm jealous of her because she's the only one who can have sex with me, so I tell her that I'm letting her out in exchange for me making me cum in her ass, which she agrees to and earns permission.