I was in elementary school and I had my first school 'boyfriend'. We all went on a field trip to a Planetarium, and we sat next to each other. The lights went out. Then it was a little quick peck, we giggled, watched the presentation, then were taken home. I didn't really think anything of it. The next day the Principle called me into her office and threatened to call my parents and get me in trouble. That boys were 'dirty', and not to be trusted. Then again, it was a Christian School. I don't think I remember it because of the kiss, but of the eternal damnation they told me I was heading towards. lol
If that doesn't count, then in High School. A boyfriend with a pierced lip and blue hair. That was some serious kissing, let me tell you. lol