My, how times have changed (adult content)

I've been torn as to whether to post this or not, but it is just too brilliant. I can't resist.

This XKCD comic is hilarious.  It is entitled "Swimsuit Issue" but really it shows just how much times have changed.  (I think I'm getting old!)
http://xkcd.com/751/

If you're a parent, how do you deal with stuff like this? I'm torn between laughing and crying. Strange sensation.

P.S. Have I mentioned that there is nothing funnier than XKCD?  Oh yeah, I think I have.   ;)