I would only use pet names if the other person starts it first.
Pet names should not be used unless the other person suggests it.....sex, on the other hand is fine even early on in the dating process.
If you're having sex & using pet names, you already have feelings...and you can't stop yourself from having them. Where you go from here is up to you....if you don't want to get too close too soon, you might want to slow things down bit (but if that's not how you feel, you can throw yourself into the relationship & see how it goes).
Who said no sex when dating - time for you to grow up I think
She may be saving herself for marriage! Which is great!
Is $ex like a prostitute? if it's sex in dating I have no problem with it but pet names drive me up a wall. I have a name.