The Kiss Quotient is contemporary romance. I checked it out via OverDrive.
Review:
Stella is an econometrician with Asperger's who'd rather spend her weekends at work than go on dates. However, her mother keeps setting her up with people and making noises about wanting grandchildren, so Stella tries to accommodate her. A comment from a coworker prompts her to decide that the solution to her problem (getting and keeping a satisfactory guy) is for her to become better at sex, so she does some research, finds a well-rated escort service, and sets up an appointment with Michael, figuring that it'd be best for her to learn from a professional.
One day a week, Michael has sex with women in order to pay his mom's medical bills. Neither his family nor his friends know what he's doing, and he wants to keep it that way. Stella is a surprise, though - he finds himself genuinely attracted to her and baffled at her request for instruction on being better at sex. He figures he can at least show her a good time and soon finds himself throwing his usual "no repeat appointments" rule out the window.