The girls in the classroom start changing clothes without worrying about me, a boy, because they're wearing bloomers to prevent panty shots. But bloomers show off the shape of their plump, bouncy butts so well, it's actually kind of erotic and makes me get an erection! The girls tease me by asking me to help them get dressed, which I can't resist, so I end up touching their bloomers and doing naughty things!
