Dirty Boss by Crystal Kaswell

She needs this job. He needs her. Lizzy Wilder is staying in New York City, whatever it takes. Her only hope is a programming internship at hot tech startup Odyssey. It's a perfect gig... until she walks into her boss's office and sees the man who shared her bed three months ago. Nick Marlowe is aloof, demanding, and s*xy as sin. He's also devoted to following a strict set of rules. His rules. Work and life stay separate. Always. Yes, he craves the feisty brunette. He shudders every time she calls him sir. He daydreams about tying her to his bed. She's his subordinate. He won't cross that line. No matter what. Dirty Boss is a standalone office romance with a demanding hero and a whole lot of heat. It was previously published with the title The Billionaire's Control.