Would definitely like to have the ability to invite people to your cam-show for a pair or threesome. Likewise, threesomes in the gym and showers would be nice. More pool events.
Sports teams could use some hazing activities, swim club could have some 'group bonding,' etc.
Not sure if there are any follow-ups to the random characters you meet soliciting you for sex after the Bully character spreads rumours, but if those aren't in game, assuming you pursued it, they probably should be (repeat customers).
Personally, I'd prefer this stays more grounded than DoL; save the outlandish stuff for the 'magic college' version. That's just my personal preference though.