She resists the trainer's sexual harassment lesson, crying "I'm a married woman!", but experiences an unprecedented climax from his muscle piston! The back piston is especially intense, causing her to sweat, squirt, and convulse in an orgasm from the pleasure of having her womb gouged! The busty wife, who never once came with her husband, goes crazy climaxing over and over, and her reason collapses as semen (protein) from someone other than her husband is poured deep into her vagina! Drowned in pleasure, Kanna ignores her anxious husband and continues to visit the gym today to be cuckolded.