It would be nice to see an all teen cheerleader harem where all the girls are very flexible so you get lots of really nice flexible angles that are unique from the girls as the other girls cheer them on. You could do an intro with lots of stretching, splits, watching them do the cheers. You could have all the girls leave their cheerleader outfits on during the scene.
Instead of being a coach, maybe you're dating the head cheerleader and she invited you over for their practice to help them all out or you came to show your support and got brought in to help. So you help them do their stretches, warm ups, etc.
Or if you want to go the taboo route, you could be the stepfather of one of the cheerleaders so you have all the girls flirting with you and calling you daddy during the scene.
