I'm about to loose my v card,i am just not shure about the girl.

She seemed fine,but she turned into my personal slut over messages,sending me Lingerie,and saying how she will suck my cock

She is educated,Only redflag is that she is into yoga and have some spiritual tattoo.And when i said that i will put it in her deep she said that she likes it deep anyway,she also asked me if i like sex in public and would i fuck her without a condom,this didn't come out of the blue though i choked her on a first date when we were kissing and i was sending her shirtless pics.

I'm just scared of STD's since i don't know how promiscuous this girl is

Should i eat her out,allow blowjob,or just fuck her with a condom?