I was told that I would celebrate my birthday, so I sneaked into the girls' dormitory where my girlfriend lives, and found that everyone was naked. I was spied on having lovey-dovey sex with my girlfriend, and while I was tutoring her while she was away, we got into a good mood and had sex, and when I was playing a game with her friend, her boobs started shaking and I couldn't resist. No matter which way I looked, everyone was naked and I didn't know where to look, so I was in trouble.