who's going to the beach

So today Belle says "Mommy is grandmom and granddad going to the beach with us?"
"No" I say.
"Is Nonni and Pappaw?"
"Yes"
"And Aunt Tracy and Uncle Brian?"
"Yes"
"And Meme and Poppop?"
"Yes"
"Yey!"
"And Dennis and Penny will probably be there too, do you remember them?"
"Who's Dennis?"
"Pappaw's Brother"
"Dennis?"
"Yes"
"Isn't that like a ball?"
I couldn't stop laughing! "Well, no that's Tennis, his name is Dennis with a D"