Lassie.
Miss Havisham.
Adam. Nasty, nasty stuff I bet.
Moby Dick. He had more tail than anyone.
I keep thinking of real people, and the names that come to mond are Richard Nixon and Helen Keller.
Ok ok ok, fictional…
Ah… The Beaver.
Hmm, from that universe I think I would pick Elinor Dashwood. That one had fires banked deep and hot, and once she was married, well!
Roddy
I think you mean “My candle burns at both ends…”, Edna St. Vincent Millay.
Uh. You don’t suppose they were acquainted? 
Guess seventh grade English class moved so far away I can’t remember which end of my candle is lit.
They both burned both ways.
Fanny Hill. I’ll do the stuff that was too hot for her published memoirs!
There’s a new book out called Rochester – it’s a sort-of retelling of Jane Eyre from Rochester’s POV and yes, it’s erotica. Yowza!
Hermione or Ginny from Harry Potter: seven years in a boarding school there’s no WAY they didn’t partake in experimentation that went well above and beyond the call of teenage duty.
Nah they’re British. British people never had sex, ever.
Violet Elizabeth Bott and William Brown.
The Monkey, especially when she wasn’t with Portnoy.
I bet Moneypenny was quite the dirty mare…