Leave before someone shows up
From Create Your Own Story
You realize that your stealthy approach has failed and you need to leave before someone discovers you here. Nicole's parents are very important people where you live and this story wouldn't go over well. In a hurry, you pull your pole out of her snatch, run to grab your trunks and slip out of the girl's locker room. When you reach the boy's showers, you still have a hard on so you quickly finish what you started under a hot shower. After a few more minutes, you fire off your load, get dressed, and leave the pool.
You sort of got lucky, but it doesn't really count. Better luck when you get back to school.