Fever Berkley Trade Paperback Edition.

Jace, Ash, and Gabe have been best friends and successful business partners for years. The 38 year olds are powerful, imposing, irresistibly sexy, and Jace and Ash share everything-- including their women. When they meet 23 year old Bethany, Jace begins to feel things he's never experienced before: jealousy, and a powerful obsession that threatens him, overwhelms him-- and excites him beyond control. Jace isn't sharing Bethany. He's determined to be the only man in her life, and it's jeopardizing a lifelong friendship with Ash ...