One Night With the Billionaire Too by Cassie Cross

Amber Reid is a twenty-something New Yorker with a heartbroken sister living on her couch, a job she loves and a boss she’s in love with. Her problem? Half the women in the city seem to be in love with him too. There was a time not too long ago where he showed up in the gossip pages with a different one on his arm every night, and Amber’s sister is a stark reminder that the Reid women are unlucky in love. She can’t let herself go there.
Chase Jennings is rich, handsome, and in one of the biggest messes of his professional life. Amber’s the only one who can help him out of it. All he needs is her company for a long weekend at a country estate to charm a reluctant CEO into a partnership that will make his troubles disappear. His problem? A weekend away with the assistant he’s insanely attracted to and falling in love with will test his resolve to not cross that line.
At the retreat, Chase and Amber are treated like a couple and start to feel like one, too. As they get closer, their resistance crumbles. Can they let go of their fears when the line between business and pleasure gets blurred?