Why is it wrong for a father to kiss his son?

Why is it wrong for a father to kiss his son?  That was the question Bird Man aka Baby asked when he was being interview on the radio.  This interview was focused on the fact that picture showed Lil Wayne and Baby kissing.  This was the talk of  the town because as we all know, the majority Hip Hop Artist are homophobic or the claim to be.  Bird man stated that he kissed his son on the mouth and he would do it again if Lil Wayne was sitting beside him.