Quinn, Meghan. Bridesmaid for hire (Series)

"Hudson Hopper is in trouble. After doing his business partner Jude a favor by hiring Jude's younger sister Sloane, Hudson very quickly finds out that she is a massive distraction--especially since she's now his assistant. Things get more complicated when Hudson volunteers Sloane to fill in as a bridesmaid for a potential client, and she agrees--with certain stipulations. She'll be a part of the Regency wedding--corset and all--if Hudson marries her. Sloane knows the value of the trade: he needs her to get into a high-society club to help secure his business deal, and she could use a down payment to secure her childhood home in return. It's an instant no from Hudson at first, but when she convinces him that no one will find out, including her brother, and points out how he will benefit from the marriage, too--well, Hudson might just find himself saying 'I do'"--