I think there's some notion that most virgins haven't had sex because they suck with women, or that they will eventually succumb to temptation. When I was 15 years old I posted something on a message board saying I'd wait until marriage, and this guy called me out saying that I should "wait until I grow up" and to get back to him in five years. In the subsequent five year period I had several girlfriends, including the obligatory extreme face-sucking make out sessions, and I even had one chick begging me to bang her while we were alone in this secluded park, but I stood my ground. Five years later I messaged the guy back, much to his surprise, and now at almost 24 years of age, I still haven't changed my views.
I just don't feel the need to be sexually active (despite the biological urges), so my activity is generally limited to kissing. I guess some of the heavy stuff could be considered feeling someone up, but I'm not one of those touchy-feely kind of guys.