Need Relationship advice

I've started dating a girl, she's lovely, listens to me, takes care of me and bla bla.. Initially our vibes matched, but then I got to know more of her.

She often goes out with her friends in a group where they drink and smoke.

When I got to know about it, I clearly mentioned she can't smoke or drink, and she agreed.

But about her male friends "she mentioned she knows them since long, and it would be rude to suddenly stop contact with them, but since she also respects my feelings, she'll slowly distant herself" But clearly she doesn't, she still goes out and idk if she still smokes/drinks or not.

It's been just 2 months and she already asked me for sex. Which is a major turn off for me (I know most guys would disagree here with me). But I come from a small town, I never drink or smoke, I don't like clubbing or any kind of chaos that steals my peace away.

So I kinda denied saying I don't know her yet completely and we should slow down a bit. Idk what she thought, she then revealed me that she's already have had sex before, which is again a major turn off for me.

I've never had sex before, not because I didn't get opportunity, but because every girl I came across had either experienced sex and wanted to have something casual with me or some just wanna do it cuz of fomo that they don't know if they themselves gonna marry a virgin guy, so why not have sex with me.

Some even try to explain to me that you get to live your life once, so it doesn't really matter, you should experience all the fun, and that I won't get a good partner in this generation so I should stop looking for it.

Now at this moment, I can either continue in this relationship and give her the thrill she wants (and experience sex for the first time myself with someone whom I started to feel uncomfortable with cuz of her past and her current habits) Or I can simply deny her and break up, as she's not my type. And start to find my kinda partner (which God knows if someone likes that even exists)

Deep down I know I don't want to get manipulated into thinking I have no choice and just do it, and it is against my personal morals, and at the same time it is so fucking difficult to take a decision.

Feels like I'm a paradox.

Ps: I've been getting paranoid, so it's just a rant to put down my current thoughts. You may or may not give any advice.

TC: 2800000 Yoe: 5