First kiss when I was thirteen I believe. I did get one when I was five from a group of girls in the year above me dared one to, but that hardly counts.
You're not missing out on anything though. When I was in school I had three girlfriends (not all at once), but everything was shallow. It doesn't kick in until you mature, around your late teens. So don't worry if you haven't yet and you think you're too old. Two school friends of mine hadn't when they finished their A levels at age 18.
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