What? Skin Heat doesn’t even really make any sense. Let’s see if the description clears things up:

Veterinarian Geneva Harper finds herself irresistibly drawn to Zeke Noble, the mysterious young man to whom wild is second nature. When a killer threatens Neva, Zeke’s need to protect her is as fierce as his desire to claim her as his mate.

… “to whom wild is second nature”? Pardon me while I recover my eyeballs.