Sex is just an act of the flesh.

Don't be surprised if you find yourself wondering after you've lost your virginity what else there can be.

FWIW I lost my virginity at 16 with someone I had just met that night and didn't see after that night. Kind of weird, but you should definitely try and "save yourself" (as corny as that sounds) for someone who will matter to you once you've completed the act of intercourse. Often that's much more fulfilling that the act itself.

I'm 24 now btw.