Original Linneart found here: http://beta.furaffinity.net/view/7001516/
With a few tweaks.

One of my more deviant characters, this is Lilith. A feisty little critter, she prefers to go by the name Lithium. She stands at 5'6 and she loves to be bitten, if you couldn't tell.

Chain her up, whip her, spank her- all of that is good, and she loves it, but nothing makes her go crazy like being bitten. Every one of her scars is caused by something that made her groan. She's not ashamed of that fact and does not hesitate to walk around in the nude, showing her scars off to anyone who would like to add another.

Or, if you get to know her first, someone she can be a proper sub for.