Yumana-chan (D-cup), who plays guitar in the light music club, and Ichika-chan (E-cup), who plays bass. The two who trust each other forget their friendship for a while and have a squirting battle with a vicious electric massager! Even though they were acting tough saying "We don't squirt or anything...", when the electric massager is applied directly, their immature bodies convulse, their beautiful legs tremble and they can't stand up. In a panic state with their first abnormal pleasure. But escaping is not allowed, and they pee all over the room. Synchronized squirting climax while holding hands! The loser of the game goes to a further pleasure hell with a raw sex punishment. A beautiful girl who was made to understand the pleasure of a big dick creampie to the core, sucking on an old man's dick in front of her best friend, and her first titty fuck with her trembling beautiful breasts!