I see others thinking that it was creepy for a dad to talk that way but I don't think so, many people are raised by a man who could only treat them as kids, but some parents really do treat them like more than kids, like friends, so as a friend, not just a father, teasing even after 20yrs sounds like a friend teasing not just as a dad, I mean thats what friends do, it is hard for people to grasp such things because of the way they are raised, they couldn't see the father as nothing more than who he is a dad but not a friend, its difficult to understand if you can't experience for themselves. And those who say that he was keeping tabs on strange women to tease his son may not be correct, I mean nobody knows if he is indeed keeping tabs he might have just recollected her image when he accidentally saw you both and just saying she has great tits because that is the only thing he still remembers about her. I'm just saying a dad teasing his son just to embarrass him even after 20yrs is not that bad, it will be sad if no father doesn't even try to engage woth their kids.

No matter what others say you seen to have a great friendly dad. Cherish him, you will miss these things the most when you can't experience them later.