I dislike the generalisation of how "normal human being" is perceived as one who definitely "is craving for sex".
As
>>2 suggested, there's masturbation. If you're unsure, chances are, you'll probably regret it. There's the whole "if you're comfortable with that person" argument, but if you're under 16, wait it out. And
if you do intend on dropping the V card regardless of our persuasion against it, then for the love of God and cheesecakes, bring two condoms with you at all times. Not one. But two.