Their Beast Mate by Milana Jacks

Two beasts. One woman. Feel the heat.
Brothers Zenor and Norem of Tevent are sent to New City, to strengthen their undeveloped mental connection and possibly uncover a way to communicate via a mind link. They must stay focused on their meditation training, and report to the Alpha Beast as soon as they establish a link. The last thing they need is a girl who could not only compromise their fragile bond, but also tear them apart forever.
Since her sister’s mating Shayma has spent months inside Mayhem’s court, looking for her own beast mate. Unfortunately, none of the hunters she’s met claimed her. When all hope seems to be lost, not one, but two beasts claim her as their mate.
They are beasts, and they don’t share. One of them must die.
But every rule has an exception.