Mirai's borderline-sexual training leaves her soaked in both sweat and pussy juice. She hates being attacked by the adult trainer, yet his relentless cock gives her explosive orgasms and squirting unlike anything before. Doggy-style pounding is especially overwhelming, awakening her hunger to be taken from behind. Each thrust digs into her womb, sends her ass bouncing, and makes her convulse repeatedly. Feeling guilty toward her premature-ejaculating husband, she still returns to the gym for more muscular sex.