I was in the kitchen, Tot was sitting on the couch and I hear:

Tot: Mommy come look
Mom: Just a minute
Tot: Mommy come look now!
Mom: Ok, what is it
** bou blink as I walk over and see his p.nis sticking out of his underwear **
Tot: Look, I can make it move!
Mom: ummm Yes. Now you can put it away.
Tot: Knock knock
Mom: Who’s there?
Tot: Baby (said in elvis like voice)
Mom: Baby who?
Tot: Baby in your butt. **belly laughter**
Mom: *sigh* *smile*
Tot: Knock knock
Mom: Who’s there?
Tot: Baby (said in elvis like voice)
Mom: Baby who?
Tot: Baby in your eye. **more laughter**

this continues with different body parts until Happy dog shows up… and I threaten to have Happy kiss Tot. Then Tot pulls down his underwear and tells Happy to kiss his butt. No joke. I thought I was going to burst from holding in the laughter. And then the conversation went something like this:

Tot: Mom, kiss my butt.
Mom: No
Tot: *laughing* Mom, kiss my butt.
Mom: No, farts and poop come out of it, I am NOT kissing it.
Tot: *with underwear still down, turns to put butt towards me* Mom, kiss my butt.
Mom: *unable to resist, gives a spank on that bottom* NO, I will NOT.
Tot: *moving out of reach and laughing harder* Kiss my butt, kiss my butt, kiss my butt!!!
Mom: It has stinky stuff come out of it, I will NOT kiss it.

Then Tater shows up and all stops. Phew.