Absolutely, yes.

Humanity (or any other sexually reproducing species, for that matter) would've died out a LONG time ago if it were not.

Sexuality is a perfectly normal part of being alive, IMO. That doesn't mean it can't be scary...I'm very scared/nervous at the prospect of my first time. Lots of things to take into account, among other "Harley Unique" fears. But it's normal...both to be curious about it and to be, at the same time, a little afraid.