The Very Best Man (Wanton Weston Women #4)
Wynter Daniels

Marco has kept his attraction to his cousin’s woman under wraps. When the wedding implodes, he helps Wendy track down Paul in Aruba to get some closure. But once on the island, neither of them can deny their strong attraction, and they spend the night engaged in the hottest sex Wendy has ever had.
Wendy worries that maybe she’s moving too quickly, but after experiencing the best sex of her life, she discovers what she’s been living without during her obsessive search for a husband. And realizes Marco is the very best man to give it to her…"