Teenagers are super horny and to pretend they DON'T have sexy time is stupid ┐( ˘_˘)┌ I toss porking into the Done Off Screen Pile™.
Although Lola and Gord tried too do some funny business in some mission I don't recall, he couldn't get her bra off. This is about as close as it comes, and even that was removed.
TBH I sort of wish that, alongside a Dating System of Sorts™ in my Bully 2 that'll never happen, if somebody reaches a certain level high up on the relationship scale with the protagonist and have dated them a while, you could bed them... though I wouldn't want to actually see it. Just show the door closing and then use your imagination. That should be enough to slip past a 18+ rating, right? (ยด•ω•̥`) Assuming there's nothing else in the game that could bump it up, which I doubt there would be.