If you want to play lewdly, start your game with a Promiscuous bonus, which promotes you to level 3, while still being a totally, or almost totally inexperienced virgin. Do not ask how that's even possible that you've experimented sexually, yet have no idea how to do a proper handjob. Anyway, level 3 Promiscuity opens a lot of doors (whoring yourself out at the Brothel, school project: genitalia measurement) and your other lewd stats will soon follow. Make sure to discover the Brothel on your first day and you can max out your Pro and Exh in less than a week. You'll have to wait a bit for the Deviant opportunities to present themselves. You may try swimming in the ocean or walking in the forest to provoke the surrounding fauna, but the safest, least traumatic way to increase that stat is to wait for the first full moon and wake up in the middle of the night, between 3 and 4 am to notice an eerie light emanating from the mirror. Interacting with the tentacles sprouting out of the mirror each night will get you up to level 2 Dev and from there you should be able to reward stray dogs (which can promote your Deviancy up to lv 5). And there you have your super slut/whore, if that's what you're looking for. Make sure to work on your Seduction skills and always try to seduce. Even if you fail, the skill improves. And dance a lot, not forgetting to strip while dancing.
Do not skip school and be a good student for most of your lessons' duration (2/3 of the time), while interacting with other students just once per lesson to improve your status among them.
Try to find some time each day for physical workout: running, watering plants, playing volleyball at the beach. It's a pain in the ass to grind at first, but eventually, high Athlecism will cut the amount of sexual assaults by half, when you're able to outrun your assailants.