Despite the carefully-worded agreement meant to keep their relationship strictly professional while Kate explored BDSM for an article in her college's newspaper, Drake and Kate broke their own rules and fell in love.Now, in the weeks before they leave for Africa, Drake takes Kate more deeply into the D/s lifestyle. In the process, the walls between them continue to crumble as they explore each other physically and emotionally and they fall even more deeply in love. But before they can even leave Manhattan, the past returns unexpectedly to challenge their blossoming relationship.Is Kate and Drake's commitment to each other strong enough to stand the test?

From USA Today Bestselling romance author S. E. Lund comes Book 4 in the Unrestrained series, Unbreakable, which follows Drake and Kate during their first year of marriage as they face new challenges to their bond and are tested to their limits. The Unrestrained Series: Kate McDermott is a good girl who has done everything she can to please her very powerful and domineering father -- a Justice on New York's Supreme Court with hopes for political office. When she decides to write an article about BDSM in popular culture, she tells herself it's just research and nothing personal for she can't afford to become the target of gossip or scandal. She hopes that the carefully worded agreement she writes up will keep her relationship with the Dominant she will interview strictly professional. Then 'Master D' - Drake Morgan - walks into the interview and Kate is mortified for not only is he gorgeous, he's the son of her father's best and oldest friend… Drake Morgan, MD, bass player, philanthropist – Dominant. Known as Master 'D' in Manhattan's BDSM Community, Drake must keep the kinky side of his life secret to protect his very successful career as a neurosurgeon. After a heartbreaking divorce, Drake doesn't do girlfriends, he doesn’t do sleepovers, and he certainly doesn't do breakfast in bed the morning after. He keeps everything in his well-ordered life separate and under his firm control. Then Kate McDermott crosses his path and screws everything up. Now, nothing is neat and tidy anymore, and no longer under control for Drake is smitten and things are going to get messy… 18+ only for mature content.**