Navy SEAL Dylan Van Doren knows a thing or two about keeping his enemies at bay. But even though Astrid Hughes is—was—the maid of honor in his brother's disaster of a non-wedding, she doesn't look like his enemy. She doesn't feel like one, either, when he pulls her into his arms and kisses her senseless. Astrid values loyalty above everything else. So it's totally wrong to let herself fall into a vacation fling with her best friend's ex's brother, right? Maybe not if they keep it a secret. And if they promise each other they'll walk away at the end of the week, no matter what.