When I was born my Mom said "Oh hun she's so cute..." And my daddy kissed me... Just kidding, my first real kiss was at a family friend's birthday party when I was 8 and as I was walking out the boy my age kissed me on the cheeks.... It was weird and random... His sisters were all yelling at him!
I was 17. Pretty standard. The age of someone's first kiss isn't really that important though, unless they're like... in their 30's? Then I wonder what they've been doing if that hadn't had at least a kiss.