Rod Stewart recently revealed that he and gorgeous wife Penny Lancaster, 37, would love to have another baby.  Their 2 year old son Alistair Wallace, stopped breastfeeding about a year ago, and apparently Rod loves to latch on!

Cameras caught the pair while on vacation, just as 63 year old Rod planted a quick nibble on her nipple.  Yes, I too think it's creepy they are both dressed in all pink.

Obviously these pictures are NSFW/kids. (which, you know, is kind of ironic.  But milk for Grandpa could be a bit unsettling for a child.  So there's that.)