After swimming class, a big incident occurred in which the girls' underwear disappeared! Until last year, I was the only guy in the class at an all-girls school, so I was suspected of being the culprit, but of course I didn't do it! The girls had no choice but to attend the following classes without underwear or bra. Nipples showing through the shirt, nipples visible through the gaps in the buttons! And a glimpse of her pussy! My crotch was rock hard from the erotic sight that came into view no matter where I turned! And then the girls noticed my erect penis...