My older sister suddenly said to me, "Be my practice dummy for the massage I learned in training." When I heard the details, it turns out her part-time job is a men's esthetic with cumming included! I couldn't bring myself to ask why she'd work at a place like that, so I agreed to help her practice. Then, with close-contact service and an inguinal lymphatic massage, she drenched my cock in oil, stroked it, and sent me straight to heaven. Seeing that my cock still wouldn't settle down, she even negotiated a "hidden option" just like in the textbook, and it developed into actual sex at home! My sister looks like she'll become the No. 1 men's esthetic girl, even though she offers actual sex...
