Brimstone and Broomsticks (Accidental Witches #1)

Maintaining the town wards is the only witch-magic Cassandra Perkins performs—well, except for that time she set her ex-boyfriend's pants on fire. But when she gets stuck defending a man who claims to be the son of the devil against assault charges, Cassie finds herself firing up amulets and dusting off her broomstick.

Who knew a demon could be so hellishly sexy? Or that his arrival could cause so much trouble in a town full of werewolves, trolls, and harpies? Rated '2/5 - Behind closed doors' for steam/spice/heat level.