After finishing the final exams, I stayed over at Momo's house. In the middle of the night, I needed to use the toilet and quietly slipped out of bed so as not to wake her. Then, I heard water sounds and a woman's voice coming from the bathroom. Curious, I secretly peeked inside and saw my aunt doing something all by herself. Watching her, I felt my own pussy getting hot. Unable to resist, I started touching myself just like she was. But she noticed what I was doing. I panicked and tried to hide, but it was too late—I'd already been caught.