Worried about her chubby figure, Nagai decides to go to the gym to lose weight. She starts off with stretching, but the members get to stare at her plump body from close up. Nagai's crotch, already wet with excitement, is thoroughly examined deep inside as she spreads her legs and ends up squirting. Next, the trainer grabs the throat handle and thrusts her hard before ejaculating deep into her throat. With her legs spread like a frog on the chest press machine, Nagai gets a thick, raw cock shoved into her. At first, she barely keeps her composure, despite being turned on and thrilled by the unexpectedly huge cock, but when there's a knock on her cervix, she can't refuse a creampie and ends up begging for it as he pours loads of semen into her.