On Temporary Terms: An Enemies to Lovers Billionaire Romance (Highland Heroes, 2) by Janice Maynard

USA TODAY bestselling author When keeping things strictly business isn’t an option… Keeping secrets is the only one! There’s a new bachelor in town, knocking lawyer Abby Hartman off her game. Scotsman Duncan Stewart, her client’s sexy grandson, should be off-limits—but certainly a brief, mind-blowing affair wouldn’t be too terrible. Things heat up…way too fast. And when a family crisis reveals Abby’s true identity, they must choose between keeping their fling temporary or making a permanent merger!