Yukiko Suo, who loves sex, appears in the simultaneous orgasm series, which pursues the ultimate pleasure of men and women reaching climax at the same time after enduring to the limit! Sex where you cum together with a masochistic man who enjoys the expression on the man's face as he endures! Sex where you cum at the same time while being teased by a carnivorous man! Sex where a wild man and woman who easily cum endure each other and expose their instincts! Ejaculation and vaginal spasms that will make you scream and tremble until you lose consciousness! Intense sex that focuses on ejaculation that feels many times better!