Scott/Stiles/Derek Idea:
Derek works his ass off making a really nice Thanksgiving dinner for the entire pack and has everything in the fridge with "DO NOT EAT" signs clearly on it.
And of course Scott and Stiles get a little stoned and decide what's the harm? They lose track of how much they've been eating Derek comes back home to see both of them slumped in the living room groaning and holding their bellies, shirts covered in gravy and mashed potatoes and pants totally just discard.
"Are you fucking kidding me?"
"We didn't groan eat burrRRPP all of it Frrrpffltbtt"
"Oh of course, we'll have Thanksgiving with just green beans and squash because god forbid you two pigs eat a vegetable!"
(Derek 100% has predicted they'd do this and the ACTUAL food is hidden in the fridge in the basement and the pack is all bringing dishes). But he makes a BIG show of cooking everything again.... and on Thanksgiving when the entire packed is crammed into the Sheriff's house, Derek keeps suspiciously acting like he isn't angry and refills their plates with thirds... Until they get home, button of their jeans undone, holding rounded middles and complaining how they've over done it....and they find Derek has an entire 2nd feast ready for them.
And then they wake up out of food comas on Black Friday, when they're swearing it's back to the gym and time to lose that 10lbs of Turkey weight, and Derek is rolling out their 3rd feast of that week. If the house isn't filled with their groaning and gas- they're not eating enough! This is what they get! Derek will cook them a Thanksgiving feast daily to prove a point - until those 2 apologize for what they've done.
It doesn't happen.
They quickly go from "Ughh too much food we can't finish this all." to "I think plblblb we got bworrRRPPp extra BRRPFFBLTTT pies mmpphhff today!"
"How can you possible tell?"
"I wasn't this full urrrRPPP yesterday."
They just shovel food into their mouths as they talk with their mouths full, food spewing everywhere. Constantly have a competition on who eats more - and have started making it more specific. It's no longer "who can gain the most this week" or "who has eaten the most" now it's gotten to be "Mashed potatoes are heavier bworrRRPPp they count as more points! PFFFPTTT" Derek does his best to translate "Stiles and Scott speak" which started as intelligible sentences and is now largely just constant blasts of gas and food-filled mumbles.
Derek starts the year by nagging them to clean up, he doesn't care how full they are, he's not having 2 roommates who get too fat for his couch and "would you two shower you smell like turkey!"
And ends it by enthusiastically being buried under their massive belly hang and sweaty fat rolls and fat pads, getting them off and pushing them to keep eating, doesn't care if there is no pie left, might as well finish off the can of whipped cream, they must have room for that...
