I kissed my best friend.?

My friend Connor and I were messing around and then we pecked each other. I know its not that big of a deal but we kissed twice and I couldn't stop thinking about it ever since I left school. He is 1 year younger than me and a lot shorter than me and I don't really think I like him because that would be weird because we are such close friends. I'm not really sure if we're kinda just friends messing around or if it meant something. Plus I want to kiss him again and I don't know why.