To be sure, there was a certain amount of situational homosexuality that occurred among the all-male crews of buccaneer ships back in the golden age of piracy, much like there is in modern-day prisons and professional wrestling organizations. But it's not as though those super grizzled, hyper-masculine throat-slitting machines engaged in same-sex coupling, right? It's a fiercely divisive subject even today, so 400 years ago it must have been absolute insanity to even suggest two men getting married, much less two pirates.
On the contrary, some historians claim that the original "Pirates of the Caribbean" (pirate crews who docked, traded, and intermittently lived in port towns in the West Indies during the 17th century) had entire communities where homosexual couples were considered perfectly acceptable. Picture that scene in Tortuga from the Disney movie, only loaded with gay men.
You see, pirates had a form of civil partnership called matelotage, a marriage-like institution wherein two male pirates shared all of their ... OK, we need to think of another word for "booty" here -- let's go with "loot." Additionally, each would name the other as his sole inheritor. While this makes a good I Now Pronounce You Chuck and Larry kind of economic sense, in as much as it was essentially the only kind of financial security a pirate could hope for, some commentators argue that these relationships were also romantic in nature, possibly because matelots could routinely be observed having sex with each other.