My little sister suddenly announced she wanted to go on a trip. Something seemed off with her relationship with our parents, but I didn't press her for details. It had been a while since I'd seen her, and her body had clearly matured. Her breasts now exceeded a G-cup, and she started teasing me with a slightly mischievous attitude, as if to provoke me. It was clear she'd become more of a woman. Yet, when she was taken by another man right before my eyes, she seemed deeply embarrassed. Still, her expressions gave away how intensely she was feeling it. Hmph.