OFTR-014 Narumi Hirose, Mei Mizuki - Restrained Piston Vibrator: The Game of Holding Back Your Moans

Three amateur women, Mizuki (28), Natsumi (24), and Sanae (25), who are in need of money, participate in a game where they must endure slow-piston vibrator attacks without making a sound. The challenge consists of three 10-minute stages, with progressively larger vibrators stimulating their vaginas. The prize for remaining silent is one million yen. Mizuki, an office worker with fair skin and long legs, is the first to be bound and lubricated. As the vibrator slowly moves in and out, she struggles to suppress her moans. Her sensitivity increases with each stage, and she is disqualified after loudly climaxing during a breast massage. Natsumi, a tall sports instructor, also fails the challenge due to her high sensitivity. During a bonus round, she is stimulated by a real penis, leading to multiple orgasms and erect nipples. Sanae, a petite woman with large breasts and short black hair, initially appears confident but succumbs to the thick vibrator, failing the challenge. In her bonus round, her sensitive breasts are massaged and licked, causing her to vocalize and lose the game. Despite not winning the main prize, Sanae, now in an aroused state, enters a gangbang stage where she is surrounded by real penises. She experiences multiple orgasms and receives cum shots. Although she made sounds, Sanae's cheerful participation and acceptance of the cum earn her a prize.