At the alumni gathering, Noa Nanami, a married woman with ample breasts, is half-heartedly teasing a guy who has a crush on her, her lust building up. Drunk, she spills beer on her pantyhose, and seeing her removing them in the hallway, he can't take it anymore! They go to the restroom together, and he grabs her erect cock, their moans echoing through the room. The guy, transformed from a herbivore to a carnivore, thrusts his rock-hard cock deep into her wet pussy, and she watches herself being penetrated in the mirror, her excitement growing! They're caught by a classmate, so they move to a different location and have intense sex in various positions they couldn't in their married life.