Hinako Matsui takes on the challenge of the modified orgasm bicycle. The mechanism causes the dildo on the saddle to move up and down as she pedals, making it feel better the more she rides. She attempts to endure continuous climaxes at 20 km/h, racing furiously while holding back her orgasms to avoid being noticed, as long as she keeps a straight face no matter what happens. She pumps the pedals as if thrusting into the depths of her womb, experiencing a series of accelerations and immediate climaxes. "What I'm doing is crazy, but it feels good... (laughs)," she says. Also included is her usual holding-back-orgasm masturbation during a drive, where the pleasure intensifies the more she pedals.
Perverted Bicycle Cycling Leads to Overwhelming Squirting! lol I couldn't help but laugh at the novel concept of a "guided dildo-assist bicycle" instead of an electric-assist one. Hinako Matsui, in a no-pants school uniform, inserts a dildo fixed to the saddle, and with each pedal stroke, an up-and-down motion is generated—a perverted specification. The development leading to a massive squirt orgasm from that stimulation is breathtaking (18 minutes).
Her squirting is truly spectacular, like a broken faucet. Up to that point, it's still play inside a warehouse, but when she goes out for a outdoor cycling session, from around 28 minutes, her desperate expression just before eruption is irresistible. The massive spray scene at 30 minutes has an extraordinary volume, overwhelming even the viewer. Even without a sex scene, this cycling alone is more than enough to get off on.