True story: Somebody once submitted a Janeway/Seven slash novel to Tor, but explained in their cover letter that it was okay because they had (slightly) changed the names.
And don't get me started about the submission that began with the "Klargon" battle cruiser activating its "stealthing" field . . . . I rejected that one right away!
Then again, given that "Fifty Shades of Grey" started out as a sexy "Twilight" fan fic, maybe I should have given that slash novel a closer look!