His Guilty Pleasure by Leighton Greene

When Redwood Manor’s butler Darian is accused of murder during a high-stakes Mafia parley, he has to rely on the infuriatingly attractive Raffi DeLuca to prove his innocence—before one of the mobsters decides to take justice into their own hands.
Darian Thornfield-Hayes has always been content to fade into the background while he conducts his work with precision and perfection. But when murder threatens the fragile peace between rival Mafia factions staying at the Manor, he finds himself in the spotlight in the worst possible way.
Raffi DeLuca, acting head of security—and the flirtatious thorn in Darian’s side—jumps in to give him an alibi, claiming they spent the night together. But in doing so, Raffi finds himself compromising his honor and his vows to the Don.
When Darian and Raffi are forced to share a room to keep up the charade, the attraction simmering between them flares to life. Raffi sees past Darian’s defenses to the real man underneath, awakening desires the untouched Darian never dared admit to before.
But Darian hasn’t been telling the whole truth…
Torn between his heart and his duty, Raffi must decide how far he’s willing to go to protect Darian.
Will their guilty pleasure be the key to solving the murders, or will secrets tear them apart?