teeny tiny

I've been at work the last two days. 12 hour shifts. I've hardly seen my family.
I walk through the door and Elly promptly announces she has to potty and needs help.
I follow her into the bathroom and after helping her on the toilet, our conversation goes like this:
Elly: Mom, did you know i have a teeny tiny bum?
Me: You do have a small bum.
Elly: Mom, do you have a BIG, BIG bum?
Me: Well, I think I have a normal sized bum
Elly: I think you have a BIG bum, mom.
Me: Thanks Elly.
After being exhausted from working, I had a good laugh.