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Yui, a neat and serious female college student, had her first experience in two months after dating her boyfriend. However, at that time, it exposes a special appearance of "I'm going to have a W piece climax while I'm alive" due to the pleasantness of sex. This is a kind of orgasm called "Double Peace Absolute", and it is especially common in perverted women whose erogenous zones are concentrated in the uterus. It's gone. When I consulted with a medical school senior who is familiar with "Climax Double Piece Syndrome" to try to recover somehow, he suggested diagonally "I want to research and observe the sex of two people while filming"! Yui who is embarrassed but cums while squirting with double pieces, as expected, seniors who can not stand it also participate and develop into 3P! "It's amazing, your girlfriend! It's the best!" Goodbye to the image of her who was neat and tidy. Hello de nasty bitch girlfriend. I regained my confidence and decided to cherish such erotic Yui for the rest of my life.