Her Billionaire Spy by Jewel Allen

When American tourist Thelma Lopez gives a handsome Italian a ride, she expects help navigating Rome, not a car chase from thugs. A sucker for injured men in tuxedos, she helps him escape…only to receive the strangest offer.
Dante Andretti, billionaire CEO by day, spy by night, just might have found the perfect accomplice to help him uncover an assassination plot. A tour through Italy in his Lamborghini is Thelma’s if she’ll pose as his fiancée.
Rattled on Italian roads, she happily agrees. It’s temporary after all. Too bad amidst the danger, gelato, and backstabbing ex-girlfriends, she had to fall in love.