From the fanfic-writers-say-the-darndest-things department:
"Dash blinked. The elephant in the room was threatening to go crashing through her water-vapor villa, significantly reducing the resale value."
— The Descendant, Every Little Bit
"What happened to the good old days, when a mare could only be in a committed relationship with two other mares, like Celestia intended?"
— Capn_Chryssalid, Voyage to the Center of the Shipfic Folder
"[I]nside she was sweating like a reforming sex addict in a brothel during Happy Hour."
— TheWraithWriter, I Thought White was for Virgins
Got any you want to share? Post 'em!