Fumbelina

Sophie was talking to me about her fumb today. She has a boo-boo.
"Oh, no...does your thumb hurt?"
"No, my fumb."
"Go like this...thhhh" (and I make my tongue do the th thing).
"Thfumb. Thfumb. Thfumb."
"Good, but don't put your teeth on your lip, just put your tongue between your teeth. Th. th. th."
"Thfumb. Thfumb. You say it your way and I'll say it my way."
"That's cool...I was just trying to show you the th sound so you can say things like Thumper and Thunder and Thumbelina and Thistle!"
"And whistle?"
"Sure."
"And pine tree. And piss."

I have no comeback for that one.