Indulge my curiosity if you will: if you decided to write a ghoul gangbang for whatever reason, what characters would you take?
Indulging curiosity is what I do, friend.
I've wanted to write a group sex piece for a hot minute, and I'm putting it high on my priority list for this year (which I actually had to write out, because, between my ideas and y'all's, it's a lot to keep straight!). Maybe for Kinktober. Now, I know you used the word "gangbang" (which, to me, implies four or more people), but usually when I think about writing group sex, a threesome is what I have in mind. The idea of trying to describe three people having sex at once in a way that 1. is intelligible and coherent, and 2. is still hot is already quite intimidating.
I have SO MANY ideas for threesome pairings, too, because there are a lot of interesting, really varied dynamics you could explore with something like that. Here's the onesI could see myself actually writing something for, though I'm sure I could come up with more if I thought harder:
John Hancock + Edward Deegan + Sole Survivor (I've written a bit about this pairing already, actually)
John Hancock + Nick Valentine (I know he's not a ghoul but he'd be so PERFECT for something like this) + Sole Survivor
Ham + Edward Deegan + Sole Survivor
Edward Deegan + Charon + Lone Wanderer (I read a one-shot on AO3 once with these three and it was excellent though I can't for the life of me remember who it was by, so I'll have to find it again; I think Edward and Charon could bounce off of one another in an interesting way. Edward's used to giving orders, Charon's used to taking them)
Charon + The Ghoul + Lone Wanderer (for very similar reasons as previous, though I think Charon would distrust Cooper much more and for much longer than he'd distrust Edward)
Harland/John Hancock/Sole Survivor (I think these two would be so rowdy and competitive with one another if you fucked them at the same time, and it would be a lot of fun...though Harland toes right up to the line of what John will tolerate when it comes to his behavior)
Gob/Charon/Lone Wanderer (they both come from Underworld, so they likely have some familiarity with one another already)
Gob/Quinn/Lone Wanderer (these two definitely have history)
BONUS: I'm also curious to explore a John Hancock + The Ghoul + Sole Survivor dynamic, but I think John and Cooper would have a lot of tension between them. I imagine John's cool with sharing you with someone else, but he has a lot of rules about it, and Cooper's no good at respecting those boundaries. I sort of feel like they'd start fighting at some point. Both can be rather antagonistic when they're feeling attacked or needled, and sharing you between them is the perfect circumstance for that to happen. Though, that could be fun, too...
If I were gonna do a true-blue Gangbang(TM), I'd probably go John Hancock/Nick Valentine/Edward Deegan/Sole Survivor. Lotta mature adults who at least sort of know one another already in the room, so you would worry less about things going sour because someone's getting their toes stepped on or whatever. Plus, I've always asserted that both Nick AND Edward are perfectly capable of being just as horny and nasty as John. Good times.