You can do drugs in the mall, some ppl can give you a blunt/bong.
You can have a "sleepover" with your main friend (the one from HS) if you visit them and talk about sex it will escalate.
In town there is a glory hole in the porn shop, you can gamble for sex or money in the arcade, if you wear a skirt and go to the second floor of the library you can open your legs with or without underwear, and hook up with random people in the bar and Friday parties. (Oh and I started progressing a story line where I'm pretty sure leads to filming porn of yourself)
As the game progresses (and you level up your exhibitionist stat) your rival/class harasser will start a rumor you have sex with anybody for $5, you can 1.say yes and do it 2.Say yes for $50 or 3.say no.
Idk if this helps or not. This is just the stuff I discovered who knows how much more is in the game. I got weirdly addicted and competitive about this game it was slow at first but after understanding the mechanics it gets better