Monk by Heather Slade

His lips are sealed, but she’s screaming for more . . .

Silence is his most dangerous weapon…
K19 Security Solutions partner, Rhys “Monk” Perrin works hard and keeps his mouth shut. Doing what he’s told, when he’s told, Monk’s missions are the most perilous and extreme. After all, he’s riddled with guilt from years ago that’s left him numb and dangerous. But when he meets his partner’s older sister, Saylor Sharp-Davis, Monk realizes there’s more to fight for.

She talks the talk, but fears the walk…
Saylor is no stranger to the life of private intelligence operatives, growing up with one of K19’s senior partners for a brother. The majority of the danger she’s faced was at the hands of her ex-husband. And when she encounters Monk and his gentle touch, she craves it again and again. But she’s not about to let down her guard.

The enemy is closer than they realized…
When Saylor’s life is threatened, Monk is hellbent on protecting her—refusing to lose another person he loves. But circumstances are tearing them apart, and time is running out. Will the strong, silent savior finally say what he wants?

While each book in the K19 Security Solutions Series is a standalone with its own HEA, they may be more enjoyable read in order.