Forever Mate by Lisa Lace

Six-foot-seven alien seeks marriage of convenience
He’s the most sought-after assassin in the galaxy. His latest mission? Rescue a kidnapped child.
The woman needs to pose as his wife and be good with kids. Nothing more.
The matchmaker promises him the perfect mate.
He never imagines the matchmaker might be telling him the truth.
On his wedding day, his forever mate walks down the aisle dressed in a white, flowing, mermaid gown.
He never imagined a woman who can fulfill his darkest needs.
His dark-eyed mate is full of lush curves he wants to taste. Wavy hair that falls past her shoulders. Thick tresses he wants to wrap around his fist as he sinks into her tight heat.
Everything about the human stokes his desire. For now, he must deny his hunger.
They have work to do.
The life of a child is at stake.