ฉันเย็ดตูดลูกพี่ลูกน้องสาวเพื่อแลกกับการเดตแฟนใหม่ของเธอ

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