Lord Edgar Huntington isn’t sure how he fell in love with his best friend, Lady Petunia Carrington, but he did, and it has been a complete disaster. Before Petunia left to travel Europe, he proposed to her, but she refused. Her reason? They’re great as friends, but as a married couple, they’d be miserable. And the worst part is that Edgar knows Petunia is right. They’re total opposites…and yet he can’t help wanting her.

Lady Petunia Carrington is finally returning from England after her year abroad. She has enjoyed her time away and has had a few adventures of her own…but, really, she can’t wait to get back to London to see her best friend, Lord Edgar. He proposed to her before she left and she refused him. But now she has had a complete change of heart.

When Petunia and Edgar reunite, attraction crackles, but it is Edgar this time who doesn’t see a future. Petunia suggests that they embark on an affair over the twelve days of Christmas to get the attraction out of their systems before returning to a lifetime of friendship—and Edgar accepts. But will Petunia and Edgar be able to go back to just being best friends after almost a fortnight of passion? Or will they find the HEA that they didn’t think was possible?