KING-293 - Amateur couple attempts a voltage stimulation device challenge. Contact with the wire activates vibration! Extreme arousal and inability to control ejaculation occur in front of the boyfriend. ~Fumichan & Naoki-kun Edition~

A desirable girl, Fumichan, with a large butt and F-cup breasts, and Naoki, a capable office worker, are an enviable couple. Welcome to the 'stimulation device' challenge! The prize is large, but... every time the man fails, Fumichan's seemingly serious, intense vibrator goes wild! If they quit, they are immediately restrained! He continues to stimulate her sensitive breasts and nipples while she desperately tries to endure the pleasure of the vibrator. "It's too much, I can't take it anymore..." she says, unable to hold on any longer, and the vibrator is used forcefully in reverse. She continues to climax in excitement. Unable to understand a woman's pleasure due to an older man's abnormally large penis, a supremely satisfying NTR situation occurs in front of her boyfriend!