Once & Future Dragons by Marianne Morea

No Other Choice
Dmitri and Santer have no choice. As alpha and omega of the Sandrekar clan, they can either accept their fate and their mate, chosen by their elders or escape their subterranean world for the surface. Something no other dragon shifter has done in centuries.
Or so they thought.
Armed with a stolen map, the two make it to the surface only to be swept into a sandstorm and hurtled into an even more potent whirlwind. Her name? Leysa Soren.
Her One Hope
Rather than submit to an arranged marriage, Leysa takes her chances on the desert. Her one hope, to make it to the capital and petition the King of Nova Aurora for sole rights as heir to her clan. She never expected to fall, literally, into the arms of a matched set of hot, hunky dragon shifters, and a matchmaker who claims they were fated to be mated.
Coming to terms with their Triad truth was hard enough, now the three must fight to be together and reclaim both their worlds. Will they survive?