Miyu Aizawa, a wife with a large butt, experiences ecstasy as the coach's back thrusts deep into her uterus, becoming a cuckold every day. (DASS-703)

She refused the instructor's sexual harassment class, citing "I'm a married woman!", but the muscle piston brought her to an unprecedented orgasm! The back piston was especially intense, and the pleasure of being penetrated in her uterus made her sweat profusely, squirt, and experience spasmodic orgasms! This big-assed housewife, who had never reached orgasm with her husband before, reached orgasm again and again. When someone other than her husband poured semen (protein) deep into her vagina, she would lose her mind! Immersed in pleasure, Miyu went to the gym again today and was cheated on, ignoring her husband's worries.