"Screwed up" is a better description, surely. I'm not talking about frightened adolescents though. The Christian men I dated, I dated as an adult. They were ostensibly adults (mid-twenties) They were not inexperienced. They had both had premarital sex with other women before they met me. Nevertheless, they both insisted I was somehow in thrall to Satan because I was OK with premarital sex. Especially right after eagerly having premarital sex with me.
Needless to say, I learned not to date Christians after those guys, and would never date a Christian again (or any other patriarchal monotheist). I eventually married another taoist. The gist of that philosophy is that living in harmony with your own nature is living in harmony with nature itself. So if your nature is chaste, you should be chaste. If your nature is sensual, you should be sensual. You are only in harmony with nature (or God, for the theists) if you are in harmony with your nature. For a sensual person to preach abstinence is a sin. For a chaste person to preach sensuality is equally sinful.
That may seem contradictory, but being screwed up and out of sync with your nature causes harm to your lovers. For example, a sensual man who preaches chastity will accuse his lovers of evil, which is hurtful. A naturally chaste man who preaches sensuality will perceive his lovers as "dirty" for their own expressions of sensuality, which is also hurtful.
I assume the same is true with the genders reversed, but I know a heck of a lot more about men than women in the bedroom.
My best advice is: if you are chaste, be chaste. If you are sensual, be sensual. Whichever it is, keep it between yourself and your lover/s.