Knave by Candace Robinson

He’s tortured. She’s broken. Together they must face the most legendary beast of all.

Ferris didn’t hesitate to leave behind his mortal life as a drummer. Not when it meant rescuing the alluring, pink-haired vampire who saved his life years ago. But now that they’re both free from the Queen of Hearts, an unexpected emotion is surfacing—lust.
Mouse fled the mortal world centuries ago after a heinous event nearly destroyed her. She would never have guessed that her new life would take a monstrous turn once away from the Ruby Heart Palace. But now her thirst for blood is all-consuming.
Seeking a way to destroy the Jabberwocky seems like a good way for Ferris and Mouse to focus their energy, but the danger only heightens their mounting sexual desire.
A desire that needs to be sated.