Click with caution, supposed to be free at Amazon too but it's not showing as free for me[geo-restricted], so I'm posting KOBO link:
Dare to Love - Carly Phillips
blurb: When it comes to family, Ian Dare gives his all but in relationships he offers the bare minimum. Until one glimpse of sensual Riley Taylor arouses his dominant and protective instincts. He will do anything to possess her ... and does. But any future with Riley must include him dealing his half-brother who is a constant reminder of the pain he'd rather forget.
Riley Taylor believes herself immune to domineering men - until charismatic Ian Dare turns a simple kiss into an all out assault on her senses and she discovers she likes his brand of control in the bedroom. As their affair heats up, they soon realize they complete each other in ways neither imagined. But Riley's past is closer than she cares to remember, and her struggles with Ian's dominance might just cost her everything. (love story, contemporary romance, alpha heroes, beach reads, sports heroes, bad boys, billionaire)