Call Me Sir - JJ Argus

Simone is a computer programmer living the gig life in the finished basement of a bungalow. When her agency offers her an interesting job she has to suffer the attention of a man from the army who will check out the security there. When she sees Captain Samuels she loses her interest in coding. Especially when a loose stone tips him into the backyard pond and he has to take off his shirt so she can toss it into the washer.
Lucas Samuels is exactly the kind of dangerous-looking, powerfully built man who sets Simone's heart racing, and after very little flirting, and much to her surprise, they wind up on her sofa without any clothes on. Lucas is very much an A-Type personality, though. He likes to be in charge. Simone is startled to find herself tied up, and even more surprised at his determination to drive her out of her mind with lust and pleasure. When he succeeds she loses much interest in resisting his kinky bondage and domination games. Things get darker and kinkier with every visit, with him teasing (she thinks) about her being his slave girl, but despite knowing she should slow things down and show some independence the heat and passion make it impossible for her to resist his dark hunger. Even when he starts bringing friends to join him.