The Kiss Quotient by Helen Hoang

Stella Lane thinks math is the only thing that unites the universe. She comes up with algorithms to predict customer purchases--a job that has given her more money than she knows what to do with, and way less experience in the dating department than the average thirty-year-old.

It doesn't help that Stella has Asperger's and French kissing reminds her of a shark getting its teeth cleaned by pilot fish. Her conclusion: she needs lots of practice--with a professional. Which is why she hires escort Michael Phan. The Vietnamese and Swedish stunner can't afford to turn down Stella's offer, and agrees to help her check off all the boxes on her lesson plan--from foreplay to more-than-missionary position...

Before long, Stella not only learns to appreciate his kisses, but crave all of the other things he's making her feel. Their no-nonsense partnership starts making a strange kind of sense. And the pattern that emerges will convince Stella that love is the best kind of logic...

Half-Ressurection Blues: Bone Street Rumba Triology by Daniel Jose Older

Carlos Delacruz is one of the New York Council of the Dead’s most unusual agents—an inbetweener, partially resurrected from a death he barely recalls suffering, after a life that’s missing from his memory. He thinks he is one of a kind—until he encounters other entities walking the fine line between life and death.  
 
One inbetweener is a sorcerer. He’s summoned a horde of implike ngks capable of eliminating spirits, and they’re spreading through the city like a plague. They’ve already taken out some of NYCOD’s finest, leaving Carlos desperate to stop their master before he opens up the entrada to the Underworld—which would destroy the balance between the living and the dead.
 
But in uncovering this man’s identity, Carlos confronts the truth of his own life—and death.…