Soulfire by Juliette Cross

Tensions are rising in the Gladium Province. The boundary between humans and Morgons has begun to blur. While the human aristocracy strives to maintain distance between their daughters and the dragon-hybrid race, fate has other plans.

As the daughter of the corporate king, Jessen Cade is duty-bound to honor her arranged marriage to a man she detests. Feeling trapped by family duty and a loveless future, she longs for more, straying to the Morgon side of the city.

Lucius Nightwing is the eldest son of the powerful Morgon clan, and the greatest enemy of Jessen’s father. When a bar-room brawl thrusts Jessen into his arms, his dragon roars to the surface, craving to sate his carnal hunger in the brown-eyed beauty. The beast in Lucius recognizes her as his own, even if the man refuses to admit the truth.