Death Stalker: Dragon by C.L. Scholey

Neron is a deadly Komodo dragon shifter; his bite is lethal. One of the Death Stalker elite, and tough as nails, his job is to take out the worst of the worst. This badass is up for any challenge.
A demon shifter is on the loose and is determined to isolate his mate, wanting to kill all in his path, including Neron’s mate, Haven. Neron won’t let anyone come between him and his chosen. Haven is going to have to learn to obey Neron if she is to survive.
No one is going to tell Haven what to do, especially not the sexy dark-haired, dark-eyed god, Neron. Even if it risks her own life.