Tycoon's Proposal, The

In the third book in the Baby for the Billionaire series, Nicole Lander's sister is in desperate need of a heart operation, and Nicole has no choice but to contact Ryan Titan, the boy whose heart she had broken when she broke up with him to hide the fact that her father was abusing her. When Ryan Titan gets the call from Nicole asking for his help, he's ecstatic. He'll finally get to exact his revenge for being dumping. Sure, he'll help her sister, but she'll pay him back every night until he is done with her. The only problem is that Nicole loved Ryan beyond compare when she broke up with him and that Ryan has never felt about any other woman the way he feels about Nicole. Soon, Ryan's revenge turn into him wanting to walk her down the aisle...