His Curvy Assistant

Millie was a brat, a nuisance, but then, why was it so hard for Ranger to get her out of his head? They had spent one night together and then, he went and hired her to be the head of technological security at McTavish. She was overqualified for the job as one of the military's best computer hackers, but he wasn't about to tell her that. Ranger just needed to find a way to get past his longing for her and move onto being strictly professional, because that was what was best for Millie. She didn't need someone like him screwing up her life.
She let her guard down and spent one night with Ranger-one hot, steamy night, that she relived in her fantasies every time she closed her eyes. After that, Ranger offered Millie her dream job, and she jumped at the chance to work at McTavish. She just never imagined that Ranger would go out of his way to ignore her or make her feel like she meant nothing to him. Maybe that was how he felt about her, and that hurt like hell. Her only chance at finding happiness again was to leave town. She couldn't let Ranger find out that she was hiding her biggest secret from him. He'd made it very clear that he wanted nothing to do with her, and now, she'd have his baby as far away as she could get from him. He didn't want her, and that was fine with Millie, but he wouldn't have anything to do with her baby-not if she had anything to say about it.
His Curvy Assistant is book four of the Billionaire Boys Club by K.L. Ramsey.