There are reasons for the rules. Why? Because some idiot cannot control his hormones.
School is not the place for this kind of action. And school aged teens should not be involved in anything beyond light kissing (for some, that is too much!). I know the kind of stuff I've seen go down in the halls, locker rooms, behind the bleechers (yeah, we still have bleechers in my neck of the woods), and none of it was appropriate for the age or location.
Do the rules suck? Yeah. But when all you want to do is skip the conversation and get into whatever action she'll let you get away with...well, that is why the rules are there.