To Marry A Succubus

Vella is a succubus who's terrible at her job. Starving and in need of essence, assigned only one virile client, Solon de Sai, who keeps banishing her back to Hell without giving her what she needs, she's desperate. About to be fired and sent to the Punishing, she agrees to sneak into Lucifer's garden and steal a precious blue flower in exchange for more time. But when Michael, the new King of Hell, finds her there, he offers her a bloom if she can convince Solon to undertake a quest to find his sword.
Solon leads a secret organization dedicated to the Archangel Michael, and the one thing he hates are demons. When Vella again attempts seduction, this time in the flesh, he tries to kill her. But when she tells him of Michael's quest, he realizes he'll have to keep her around - at least, for a while.
But before the quest is complete, they'll have to spend a lot of time together. And isn't it only fair that Solon give Vella what she so desperately desires? Isn't it time his own desires are fulfilled? With a skillful tail and vibrating pinkies, Vella may be exactly what he needs. And if she takes his heart along with his essence, they might just live happily-even-after.
Trigger Warnings: Graphic language and sex, Monster organs