Darkest Night by Megan Erickson

Bodyguard Jock Bosh has one job: keep Fiona Madden safe. Safe from the men who've been hunting her. Safe from the bastard responsible for ruining her life. And with the attraction sizzling white-hot between them, that means keeping Fiona safe from him too.

Fiona has spent the past decade on the run. Her survival is the single greatest weapon she's had against the men out to destroy her. Until Jock. Now, with him by her side, she finally has a chance to bring them down. But when her enemies make their next move and Jock puts himself in the line of fire, Fiona realizes that there's more at stake than just her life-she's also risking her heart.

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I really liked Fiona and Jock. A girl in trouble, and a guy assigned to protect her, fall for each other. It's very much typical for the genre. Its a quick read with just the right amount of heat to make it perfect for a beach bag. 

~Tanja