I've got an idea for a sketch

It involves two models and one has eagerly signed up for the job of "pie taster" with a load of pies of different flavors set to be tasted

You can guess what the tasting in question would involve

I have an idea that the model getting pied would never express shock or anger and treat it as perfectly normal and eagerly continue getting hit with pies, tasting them and commenting on them

I also have an idea that model doing the pieing would express envy that they didn't get to taste any of the pies, only to see there's a few left and ends the sketch getting pied too and loving it

Any thoughts?

MostWAM did something similar with their "Pie Samples" videos:
https://mostwam-store.umd.net/download_info/mia-has-some-free-pie-samples
https://mostwam-store.umd.net/download_info/pie-samples-continues-with-lisa

They're fun videos, and worth a watch to explore your idea.

I miss Lisa getting messy at Mostwam.

Your concept could be taken to the next level maybe by having the pied model urge her partner to select particularly sloppy pies or colorful fruit pies.

I miss both Lisa and Mia getting messy. I miss loads of other "retired" MostWam models too -- Charlotte, Shell, Nadia, Katy, Alice, Emily, Lila, Ali, and many more -- but Mia and Lisa are the two shown messy in the links above and they DO happen to be two of my very favorite WAM models ever.