Rough Ride by Cynthia Rayne

KATE
I had a crappy 21st birthday, and now I’ve got the hangover from hell. My dad forgot all about it, which is typical, but it still hurt.
To make matters worse, I have an early morning meeting with my overbearing, pain-in-ass boss, Malcolm York. Instead of using my internship to learn about the ad business, I’m Malcolm’s personal assistant.
Assistant? Slave, more like. Hell is running other people’s errands…for free.
But when I discover his secret, all bets are off.

MALCOLM
I’ve wanted Kate since I first laid eyes on her, which is insane–she’s half my age and my employee–but I can’t stop wanting her. Needing her.
And when she accidentally discovers my dirty little secret, I’m thrilled. Now I have no reason to do the right thing anymore. So I’m going to make her mine in every sense of the word.
Buckle up, Kate, it’s going to be a rough ride.