Handsome Boss by Lori Wilde

Nathan Barrett knows what his matchmaking sister is up to but as soon as he spots Emma Montgomery, the unwitting would-be bride, he just can’t help himself.

He goes along with his sister Leigh and gives Emma a job at his company along with a place to live for the summer—before she leaves to finish her degree. It’s won’t be soon enough, though, since Leigh’s put Emma into high gear to fall for this Texas charmer!