[DXOG-009] Semen Research Department Adventure: Swaiill's Christmas Fake Couple, Real Intercourse (Chinese AV)

The Semen Research Department's adventure begins with a Christmas fake couple, engaging in real intercourse! Swaiill, a beautiful and young woman, exchanges bodies instead of gifts. Wearing a Christmas outfit, she seduces a man and they engage in intense sex. She rides on top, shaking her breasts wildly, and gets penetrated from behind in a doggy-style position, making her buttocks slap loudly. As she moans and reaches a climax, they research the concentration of semen. The couple licks each other until they reach a high point, and the man ejaculates, filling her mouth and vagina with his semen. The Christmas night turns into a chaotic laboratory, and the young woman's vagina is never satisfied.