When you co-write with someone fairly intensively for a while, you get a good sense of each other's "writer's brain" and develop a feel for what kind of bones you can throw that their muse might be interested in catching. That's actually one of the coolest things about it to me.
Sometimes, that has some unexpected side effects. Like having your writer's brain - used to running with your partner's prompts - suddenly decide that a relatively random writing-related comment must have been a prompt. *giggles* It's the only logical explanation I can come up with for why, when talking about fiction possibilities for Christmas,
looking_spiffy posted this: "Youse all know my current fandoms - Green Day, Metallica, MCR, the Network and crossovers therein (the crackier the better, I say)"; my brain went, 'Ooooo *squishes them all together in crack!pr0n*'; and not half an hour later I had a full-grown bunny and an opening paragraph. *dies*
So, my dear partner, as it's now gone midnight in the UK, I'm unwrapping
Chain of Command on your behalf, and I really hope you enjoy your Fink!Billie/Gerard/Lars smutty crossover. :D (I should smack you for shoving me into Gerard's POV you evil inspiration omfg but instead I'll wish you Happy Christmas! :P *loves*)
Note for t'other GD-ers: I plan to have a little OT3 smut fluff up before NYE so if crossovers ain't your thang, keep your pants on! Or not; your choice, of course. *naughty grin*