At eighteen, friends Cassie Brent and Max Donaghue shared their first – and only – kiss. For Cassie, that was the moment she started falling for her friend. For Max, however, it was a one-time thing and should never have happened in the first place. Not that he braved telling Cassie that. After all, that would mean explaining why it shouldn’t have happened, and that was a secret he planned to take to his grave.
Thirteen years later, that kiss still lives rent-free in Cassie’s mind, making it impossible to fall out of love with Max who has kept her firmly in the friendzone. But little things Max has said and done have left Cassie believing her friend may reciprocate her feelings, after all.
When Cassie’s best friends persuade her to gatecrash Max’s Christmas break, things quickly come to a head and Cassie is stunned when she learns Max’s secret. And being in close quarters for four days means that there’s no escaping the truth… or each other. It doesn’t help that the mistletoe that’s worked its magic on all of their friends is a constant reminder of all Cassie and Max can’t have – or can they? All it would take would be breaking one little promise…