This was an actual thing that happened a while ago. I didn't personally think it was comic worthy, but every time I got stuck for ideas J would bring it up, so he obviously found it funny! I'd also realized with the new kitten that this had the additional layer of being a cat joke too, so I went for it!
I initially had it as 2 panels, but the first panel was a little chaotic and I didn't like Joel's reaction in the 2nd. When it had happened, J had been walking past, about to grab a cookie, told about the licking and carried on walking without missing a beat. I wanted to direct the action a little more by keeping the beginning on Joel. I also added an extra panel to build up his excitement.
Couple of funny changes if you watch the animation above. I had Vince up on a step stool, but J said he looked cuter lower so he suddenly drops down. You can also see the moment I bothered to look up reference pictures for a spatula, when it suddenly changes from a fly swatter!