YUI, a modern, beautiful, and fashionable girl, applied for a sexy part-time job that combined curiosity and practicality. During the interview, it was revealed that she had done a similar sexy part-time job before, and although it wasn't supposed to involve sex, things ended up going in that direction. The initial agreement was for a two-person sex session with condoms, but we asked her to extend it a bit and have a threesome with unprotected sex. She said no to unprotected sex, but agreed to a threesome! ...