I'm a member of the track and field club. Today's practice has been changed to indoors due to a sudden downpour. Usually, we practice on a large athletic field, so I don't think the sight of girls in racing bloomers is sexy at all, but today, since it's indoors, we're so close to each other that it's dangerous! In the end, I, a virgin, couldn't help but get a boner at the sight of the girls' protruding butts! Instead of backing off, the girls, curious about my dick, chased after me as I ran away and forced me to insert it! However, my first time having sex was so good that I couldn't be satisfied with just one time! It felt so good, I wanted one more! But it wasn't enough. And one more. "I've had enough..." the girls on the track and field club ran away, so now it's my turn to chase them all over the school, cumming inside them repeatedly! It won't end until I'm satisfied!