Kings of Fury Series by Gena Showalter, Jill Monroe

Vacationing in Scotland, schoolteacher Elizabeth “Elle” Darcy anticipates picturesque landscapes, castles of old and kilt-wearing charmers, not awakening in someone else's body. Worse, that someone just married enigmatic billionaire Callen Bruce. Though that’s not the biggest problem. To the rest of the world, her new “husband” runs an elite empire. But behind his public persona, he’s a king of berserkers locked in an ancient, supernatural war with wolf-shifters... moreVacationing in Scotland, schoolteacher Elizabeth “Elle” Darcy anticipates picturesque landscapes, castles of old and kilt-wearing charmers, not awakening in someone else's body. Worse, that someone just married enigmatic billionaire Callen Bruce. Though that’s not the biggest problem. To the rest of the world, her new “husband” runs an elite empire. But behind his public persona, he’s a king of berserkers locked in an ancient, supernatural war with wolf-shifters.Determined to reclaim her normal life, Elle will do anything necessary to switch back with Callen’s real wife. First, she must ditch the disciplined warrior. An impossibility when he refuses to relinquish the bride chosen for him by fate, even though he despises her. Or does he? The growing heat in his eyes says otherwise. Not that it matters. There’s no way this temporary queen will fall for the moody, broody secretive warrior who belongs to another woman. Nope. Not Elle. Not ever. Probably. less

Clover Deering is living her best life. Kind of. Maybe. Okay, so, not at all. The owner of Fur-Ever Pet Spa is deeply in debt and battling a temper that scares even herself. Things go from bad to catastrophe when a terrifying man claiming to be a berserker king demands an impossible force a rival royal to welcome evil into his heart. In exchange, he'll gift her with a prize she cannot resist-meeting the twin she never knew existed... moreClover Deering is living her best life. Kind of. Maybe. Okay, so, not at all. The owner of Fur-Ever Pet Spa is deeply in debt and battling a temper that scares even herself. Things go from bad to catastrophe when a terrifying man claiming to be a berserker king demands an impossible force a rival royal to welcome evil into his heart. In exchange, he'll gift her with a prize she cannot resist-meeting the twin she never knew existed. The problem? King Viktor Endris isn't just scary, he's downright feral.When captured by Viktor, Clover enacts her own plan. Tame the unhinged warrior, turn him into an ally, and use him to rescue her sister. Not an easy task as Viktor is at war with ferocious turul-shifters, talks to an invisible friend and flips from controlled to chaos in an instant. As their undeniable connection deepens, she discovers a heartbreaking truth. Falling for her is Viktor's only path to ruin. Yet without his downfall, her twin's fate is sealed. The worst part? Clover just might be falling for him, too. But in the end, only one can survive. Her man, or her sister. less