Your dad is being a total dad- reluctant to let his daughter out into a world she's bound to lose her virginity in sooner or later. Not all guys are like that, though. During teenage years, hormones are going crazy, so it may seem like sex is the one thing everyone is concerned with, but it's really not :) Most guys, of course, want sex, but that's far from the only thing they care about! In all my relationships, I've always been the friskier one. Girls want sex, too; sometimes it's the other way around, with the guy worrying about girls and what THEY want!