Red Wolf by Jennifer Ashley

Lupine Shifter Dimitri has always had to defend himself to other Shifters. As a red wolf, he’s not considered a pure wolf, and the battles have honed him into a tough fighter, a champion of the fight clubs.

Jaycee Bordeaux, a leopard Shifter, is Dimitri’s staunchest defender and oldest friend. Dimitri is determined to turn that friendship into a mate bond. Jaycee loves that idea, but she knows that a mate bond can’t be forced. And when Dimitri and Jaycee are called on to go undercover to protect collared Shifters, she knows the dangers ahead will make or break their future together.