My wife casually consulted her sister, "I think my husband might be a masochist." This one word woke up the slutty sister, a former SM queen! My husband is addicted to the pleasure of teasing and edging with a slutty ejaculation control that he never experienced with his wife... The feeling of control that his wife's sister is controlling his penis keeps him erect. Even though he is scolded, he ejaculates with his sister-in-law's slutty technique! The husband, who has become a submissive servant, offers his penis to satisfy his sister-in-law's sexual desire.