I just tried this game, and to my surprise (and great pleasure!) I found watersports scenes in it!
I love those, so this has instantly knocked this game up from being merely "good" to being "Great"!
For other watersports enthusiasts, I've found two scenes so far, so it isn't very prominent, but they are pretty neat! One involves giving a show while on the toilet, while the other involves one of the rivals giving a golden shower to another (this one requires specific choices to be taken, otherwise you won't find it. With as few spoilers as possible, you find it during hte first Gabby/Max scene at the beach.)
I'm hoping to find more in the rest of the game, and also hoping there's some in the "sequel"/second game too!