It's a new year, and a time for new resolutions! Of course, a resolution to lose some weight is off to a bad start when you eat one of your friends at the New Year's party. Guess it's time to go work off those extra pounds!
As a side note, I'm pretty sure I've drawn this scenario at least twice before. I guess there's something I like about the "predator exercising to work off some weight while that weight is still potentially squirming" trope.