Just Say When by Elizabeth Bright

I promised my best friend I’d take care of his hellion of a sister. A sham marriage probably wasn’t what he had in mind.
Growing up, the three of us were inseparable. Now the only time she speaks to me is to tell me to get lost. Fair enough. Maybe I do go out of my way to make her mad, but I’d take her hate over her indifference any day.
But when it comes to a rodeo competition, we’re on the same side, for once. With a prize of $100,000, it would make her career—and she could finally give her mom the help she needs. Her skill and my horse are a winning combination. The only problem? The rider has to be the owner…or immediate family. The only way she can compete is as my wife.
She thinks our marriage is all for show, but there’s nothing fake about my feelings for her. I’m determined to make this marriage real. All she ever had to do was just say when.