Guarded By Vayne by Haley Weir

Amethyst Eyes.
A Burning Desire to Take What’s His.
A Pure Anomaly.
Vayne is far more than I’ve bargained for.
Dr. Zela Harpy’s is just as beautiful as she is brilliant.
Her world is turned upside down when a strangely unique case ends up on her desk.
Vayne and Valor Grimm are twin brothers who claim to be were-wolves at war with another pack.
Born into a cursed bloodline of Viking lords, Vayne Grimm has led a life of pleasure and recklessness.
Despite the insatiable passion she feels between herself and Vayne, Zela has no choice but to remove them from her life.
After a jarring home invasion, the only thing standing between Zela and death is a beast with familiar glowing eyes.
Is there more than fate and instinct binding them to one another?