Sumire, a mother, was excited as her daughter and son-in-law were coming home for the first time in a long time. Since the son-in-law was likely nervous about visiting his wife's parents' house, Sumire decided to use the massage techniques she'd developed through her work to soothe him after his long journey. While giving him a massage, Sumire couldn't help but notice the unusually large bulge in his crotch. Sumire woke up in the middle of the night, sensing someone's presence in the living room. She crept closer and found her son-in-law masturbating. His penis was bigger than she'd imagined, and her vagina began to throb. The next day, while she was giving him a full-blown massage, her husband and daughter left the house. Her son-in-law was sound asleep. She turned him over and continued the massage, but she couldn't help but be drawn to his crotch. She said it would only be for a moment, but she removed his pants and underwear...and before she knew it, her son-in-law's crotch was rock hard, and Sumire had lovingly sucked it dry.