Kin Selection — L.B. Gilbert

From USA Today Bestselling and Award-Winning Author L.B. GilbertAnimal activist Denise Hammond had no idea the wolf cub she just rescued was a shifter-not until the werewolf sent to recover him kidnapped her.
Saving a wolf cub from an animal-testing facility changes everything for Denise Hammond, a feisty and dedicated animal activist. Determined to protect the innocent pup, she's shocked when the cub shifts into a toddler right before her eyes. 
Yogi, a wolf shifter, is bound by honor to keep his species' existence a secret. He kidnaps Denise and takes her to the cub's family to make her prove her trustworthiness. Knowing a hellion with curves likes hers is the ultimate temptation for the other males in his pack, Yogi stays close to Denise, fighting to keep his desire for her under control. But she just might ignite the animal within him.
*****The Shifter's Claim series is a shared shifter world written by one person-L.B. Gilbert, aka Lucy Leroux. If the book has Lucy Leroux listed first expect steamy scenes! Those with L.B. Gilbert listed first are clean fun rides with a lower heat level. All books in this series can be read independently.