Despite resisting the trainer's sexual harassment lessons by claiming "I'm a married woman!", she experiences an unprecedented climax through his muscle piston. The back-piston is especially intense, bringing a womb-gouging pleasure that leaves her sweating, squirting, and twitching in orgasm! This beautiful-assed wife, who never once reached climax with her husband, now reaches orgasm repeatedly, her reason collapsing as semen (protein) from someone other than her husband is poured deep into her vagina. Drowned in pleasure, Natsu continues to visit the gym for NTR, oblivious to her husband's growing anxiety.
