Hudson Hopper is in some trouble. After doing his business partner a favour by hiring his younger sister, Sloane, as his assistant, Hudson very quickly finds out that she is a massive distraction.

But Sloane is asked to fill in as a bridesmaid for another of Hudson's business partners, she comes up with an equal trade. She'll be a part of the regency-themed wedding - corset and all - if Hudson marries her. Sloane knows the value of the trade: he needs her, and she needs his wedding ring to get her into a high-society club and further her career.

It's an instant no from Hudson at first, but when she convinces him that no one will find out, including her brother, and that he will certainly benefit from the marriage too . . . well, Hudson suddenly finds himself saying 'I do.'