Hard Justice by Lori Foster

Playing it safe has never felt so dangerous…Justice Wallington knows how to harness his strength and intimidating size—skills he put to good use first in the MMA cage and now as a bodyguard at the Body Armor agency. But no opponent has ever left him feeling as off balance as his new client, heiress Fallon Wade. Far from a spoiled princess, she’s sweet and intriguingly innocent. It’s a risk-free assignment, until he’s required to fake a relationship with her in order to blend in.

Sheltered from the world after a family tragedy, Fallon longs to experience life—going to bars, dancing, talking to strangers. Not easy with a huge, lethal-looking bodyguard shadowing her every move. Justice seems like her polar opposite, but pretending to be a couple stirs undeniable heat. And when danger strikes again, it’s not just her safety in jeopardy, but a passion that’s real, raw and absolutely against the rules…