Yes in due time, he will be properly brought into the cheer camp. First I'd like to see the rest of the sleep over! Maybe a humiliating makeover with some picture or video tape for blackmail(fake facebook account?) maybe he disobeys and that leads into some more corporate punishment. If you want to be extra nasty could incorporate his little accident(cum not pee) into a bottle feeding/pacifer
As for the cheerleader camp maybe the high school cheerleaders are the counselors, and the camp is mainly for slightly younger girls. What is more humiliating then being helpless to a younger girl/s? Possible scenarios during the camp is getting him in a bikini for some nice tan lines, maybe a semi permanent tat/makeup what are those called henna tattoos?
I dunno but don't let the story die, it is just tooo good!