At the Ranger's mutiny, Vane screams that he'll "cut [Jack] another cunt". Another, eh? To me that implies that Vane and Jack did the dirty pretty often, with Jack bottoming.
Honestly, whatever author wants to do with this bit of speculation is fine.
Vane going batshit on that island, ranting about his relationship with Jack as he tries to kill Edward, maybe blurring the two together due to their similar appearances (blond hair a similar length/style, similar build and height, skintone/beard scruff, etc)?? Jack reminiscing about the old days with Anne and Mary when he's had too much to drink?? Jack tries to apologise to a Vane who has completely lost his sanity while imprisoned?? I have no clue man just go where you want. Just have it mostly post-mutiny, yeah?
(spoilers in prompt!) Charles Vane/Calico Jack, the past
Honestly, whatever author wants to do with this bit of speculation is fine.
Vane going batshit on that island, ranting about his relationship with Jack as he tries to kill Edward, maybe blurring the two together due to their similar appearances (blond hair a similar length/style, similar build and height, skintone/beard scruff, etc)?? Jack reminiscing about the old days with Anne and Mary when he's had too much to drink?? Jack tries to apologise to a Vane who has completely lost his sanity while imprisoned?? I have no clue man just go where you want. Just have it mostly post-mutiny, yeah?