Mastering Mari is the sequel to Training Tessa and Controlling Krysta.

Watch out. Chase Maddox is back in town.

Dr. Chase Maddox never felt a connection like the one he felt with Mari - a girl he met at summer camp as a teenager. The innocent afternoon they spent alone together confirmed to him they were soul mates. She left the next day with his number, promising to call soon and meet him at camp the next year. But he never heard from her. For 15 years, he's been unable to learn her full name, unable to contact her...unable to forget.

When she walks into his office one day as his new medical supply rep, he's elated, sure she'll remember him, even though he's changed drastically since his days as a small, scrawny teenager. She'll have an explanation for why she never called. When she doesn't know him at all, his mind reverts to dark fantasies in which he controls her, making her bend to his will, teasing and tormenting her body until she realizes no one can bring her pleasure like he can. Then, he'll send her away as revenge for the pain she caused him.

Marissa, who's new to the job, thinks colleague Debra is ridiculous when she says the doctor-clients are her real bosses and will expect her to comply with any request. Until she encounters movie-star handsome Chase Maddox who requires that she come in after hours and "demonstrate" her products. Although Marissa feels an instant connection and is incredibly aroused by his demands, they are stepping way beyond the bounds of professional behavior. And she's sure he's enjoying flaunting his dominance over the new sales rep. She has to stop it before it goes farther, and gives up the account.

When he suddenly has another new sales rep, Chase is livid at being rejected by Mari again. Until he attends his cousin Mason's party, and Krysta "introduces" him to her friend Marissa. Now, all Chase has to do to make his darkest fantasies come true is entice Mari to his secluded ranch house, right up the road.