Taming the Angel - Gunslingers & Garters, #2

Angelique "Angel of Death" LaCroix is one of the most cold-blooded bounty hunters in the west. It's her sidekick, Jasper, who wants to know if she's heartless as well. Jasper has remained a loyal shadow ever since the hitwoman rescued him from a whipping. The duo has cut a dangerous swath from one coast to the other, and back again. Now the handsome stray wants to show his appreciation to his merciless protector.
He wants to do more than have Angel's back. He wants to have all of her.