Leave Me Breathless - Trista Ann Michaels

NCIS officers Mitch Robbins, former Navy Seal, and Jake Bradley, MIT grad, now computer specialist, have shared everything since they were children, including women. Now they're sharing an assignment, guarding Tessa Williams, the civilian scientist in charge of a massive military project.
Mitch and Jake's orders are simple: Keep Tessa safe. But they'll soon find that there's nothing simple about guarding this little spitfire.
Tessa Williams is the one women from their past that got away. The one woman they'd both been in love with and now they both want back. Together, they seduce Tessa. But in the end, she will have to decide which one she wants.
The only problem is, she wants them both.
Publisher's Note: This book contains explicit sexual content, graphic language, and situations that some readers may find objectionable: Anal play/intercourse, mnage (m/f/m).