The Wager (The Davis Sisters #1)
Jo Willow, Sharon Gurley-Headley

Joseph Barnes has a law degree from Harvard, wealthy parents and a Pedigree that goes back before they had ink to record it. He's a confirmed bachelor and he doesn't hide it or lie about it.
He needs a Personal Assistant and a good friend of his thinks he has just the candidate. She's young, ambitious, and one of his star pupils that's about to graduate with honors.
He nicknames her moose, she calls him an asshole. Just before he offers her the job and she accepts.
Their relationship blossoms into an honest friendship that takes them both by surprise. Then on one fateful, tequila filled night, Joe proposes a bet. A wager of sorts that would change everything. Forever.