Some of the most prolific figures in history got off in ways that would have been considered untoward in their time.
Nowadays, many of the behaviors described here are seen as normal, or at least, somewhat so. But back in the day, some of these writers, revolutionaries, philosophers, and the like kept their sexuality and kinks a secret, only to be discovered decades after their passing by scholars and curious readers.
Perhaps if these legends were alive now, they would wave their flags proudly and let the world know what turns them on. Or not, and that's fine too; after all, it's nobody's business what you're into.