Toxic Bachelors by Danielle Steel

They were the best of friends and the most daunting of bachelors....Charlie Harrington, a handsome philanthropist, has such high expectations for his perfect bride that no mortal need apply....Adam Weiss, a forty-something celebrity lawyer, prefers his women very young, very voluptuous, and very short-term....And for Gray Hawk, a gifted artist with a knack for attracting troubled relationships, women are fine; it's just the idea of family he can't imagine (particularly the family of the woman he's dating).

Now the three friends, spending their annual summer vacation cruising the Mediterranean aboard Charlie's majestic yacht, are about to have their bachelorhood rocked. By autumn all three will fall precipitously into relationships they never saw coming. Charlie begins dating a crusading social worker who couldn't be further from his ideal--until he makes a stunning discovery about her. Adam gets involved with his usual twenty-something bombshell--only this one has a remarkable mind of her own. And Gray, who has avoided both business and family like the plague, has managed to fall head over heels for a successful career woman--who just happens to be a mother as well.