The Devil She Knows by Alexandria Bellefleur

A spooky sapphic romance that's hot as hell!  Samantha Cooper is having a day from hell. In less than 24 hours, her life has unravelled, leaving her sad, single, and with nowhere to live. To top it all off, she's trapped in an elevator with a devilishly beautiful woman claiming to be a demon.

Pretty, witty, and dressed in pink, Daphne is not what Sam expected from an evil supernatural entity. And she's here to strike a deal: six wishes in exchange for Sam's soul. With nothing left to lose, Sam agrees; after all, she only needs one wish to win her ex back.

Daphne might look cute but she definitely isn't harmless, and she sure as hell won't let a human trick the system. Twisting each wish so Sam is forced to make another, Sam can't escape the nightmare that is Daphne and her damned deal. But as she desperately tries to outsmart her supernatural adversary, Sam soon begins to wonder whether the woman of her dreams might actually be the devil she knows…