XX vs OO

This particular subject has caused much debate at my work. In the end I was proved wrong by about 3 people - majority rules. But I would still like to explain my argument. So here it is. Cast your mind to signing off an email to a good friend or a text message to a partner and you include a 'xx' at the end. My question to all of you is.....is a 'xx' a kiss or a hug?

This means that in every letter, email and text I have written or typed in the past using 'xx' to represent a hug I have actually been doing A LOT of kissing. But to me it's doesn't make sense. When you do the action of a kiss your mouth goes into an O and when you hug someone you cross your arms around them = X. It simply does not make sense for an O to equate to a hug and a kiss an X. It's stupid and I think it should be changed and that's all I have to say.

xx (And yes, that's a hug)