just to make sure, characters can be not affected by the flood, right?

Yep! Optional this time and at all times except breaches.

because I can't think of what to do with Marty in regards to gender switching, but I do want to tag with him

ok, cool!

(and the odd port where everyone gets booted off by force but that's rare)

yeah, Dom is unaffected, so she and Marty can be like "what the fuck, y'all" if you want

that works for me!

he'll be wandering around wtfing at everyone

I do have one thought for Marty since I know you wanted to grapple with his sexuality a bit more -- being in a female body could enable him to explore his attraction to men a bit

true

haha I had a character who hooked up with the guy he was crushing on during a genderswap flood and then he freaked out -- because he was comfortable with being bi but he thought the other guy was 110% straight

the flood changes people on different days, right? so I can always do Marty later

it's also that, as I now have 3 characters, I'm not sure how much plotting I'm up to doing

though if someone wants to flirt with or do whatever with female Marty, I'm game

And to be explicit, I think this is a good idea, but I'm not doing it unless someone at least tentatively plots it out with me. I'm too busy right now to track down PBs and plan out my side without knowing that some payoff will happen.

I've got sand who may not be effected if I can't figure out something clever for him

that'd be fine

and he's literally called the golden boy so... if Marty's into morally upright blondes...

dunno about morally upright, but he does have a weakness for blondes (both his mistresses were blonde, as far as I could remember)

well, how about blonds who regularly hunt down serial killers?

...cause literally Sand's whole schtick.

it's going to be an AU version of Marty, with a similar backstory, so she'd probably be into a guy with similar life experience