Kiss of Smoke by Amy Pennza

What was supposed to be a dream vacation just turned into a nightmare. It’s not every day you board a private jet for an all-expenses-paid trip to Scotland with your two gorgeous bosses. And it’s not every day you spot your fiancé kissing another woman across the terminal.
The man I was ready to marry has been cheating on me for a year. Dumped and humiliated, the best I can do is get on the plane and lick my wounds. Fortunately, my bosses are more than willing to help…and in more ways than I ever imagined.
But Lachlan and Alec can’t possibly be interested in me. They’re in love with each other…right? Scotland is cold this time of year, but these Scots are bringing the heat in ways I’m not sure I can handle.
And as they continue fanning the flames, it’s clear they’ve been hiding more than their attraction to me. Where there’s smoke there’s fire. Now I have to hope I don’t get burned.

Author’s note: This is a MMF romance with sword-crossing aplenty.