The Lusty Argonian Maid
An Elder Scrolls game wouldn't be complete without Tamriel's most famous erotic play, The Lusty Argonian Maid.
An in-joke since way back in the Morrowind days, the play never appears in full. Instead, you'll only find a single volume from the work, a scene full of euphemisms that make you think about the Argonians in ways you never wanted to.