Because You're Mine (The Gallaghers, #3)

Ian Gallagher has always liked taking risks, both in business and in his personal life. But this time, he might be taking it too far. She is strictly off limits. He knows that only too well, but he can’t help wanting to get closer. Their nights together are wicked hot, and he’s insatiable for more.
Ian has always thought he’s a sworn bachelor, but she might just change everything.