Lifting Techniques (Carry Me #4) - Charlie Richards

Detective Ryan Straton is known as the happy-go-lucky playboy of the precinct, the consummate bachelor of the department. At a Halloween party, he enjoys admiring the eye-candy, including a lovely lady--who he learns is Doctor Morgan Pruitt--dressed as Marilyn Monroe. When Ryan stumbles across Morgan getting backed into a corner by a trio of men, he plays hero and rescues her. He's shocked to be offered a blowjob in thanks, but quickly gets on board when the woman proves just how adept she is with her hands...and her mouth.

When the deed is done, Ryan discovers that Morgan isn't a woman, and he's just received the best blowjob of his life from a man. As he's done with every woman he's bedded for almost a decade, he plans to move on and forget about Morgan.