Don't pee on Dora

Big sister came potty trained. I don't remember ever really having to worry about how we were going to do it. Just one day, she stopped wearing diapers.
I know, it just seems like that to me because at the time Grandma was watching her five days a week. Grandma did nothing but pay attention to Big sister when they were together and it was very easy on our end.
It was like getting a big raise the day we no longer had to buy diapers. It also came very early on. Big sister was potty trained at about 1-1/2 years old. And boy, was she fascinated with the potty. We had to stop at every potty within walking distance of whatever store or restaurant we were visiting. Often the beautiful wife and I had to each take her because she truthfully wanted to see both bathrooms.
Little sister is a much different story. She's at 2 years and four months and has shown no real interest in potty training. She seems perfectly willing to continue using diapers.
Well, we're tired of using diapers and she's getting too big to change very easily. So last week, the beautiful wife told Little sister that they don't make diapers her size any more. She had her pick out panties -- she picked Dora.
And now we realize we were taking the wrong tack in motivating Little sister. All we really needed to have done was tell her, "Uncle Mark will be really proud of you if you wear big girl panties."
Little sister has always had an infatuation with my little brother -- who is actually about 2 inches taller than me and has a few extra pounds of muscle too. He's also very quiet and kind of shy.
So we've been cracking up all week because the first thing she said when she got home was, "call Mark, I tell him about my Dora panties."
She did finally get ahold of him and talked for about 10 minutes -- and yes Dora panties were the subject of the conversation.