Beast: A Motorcycle Club Romance (Desert Reapers MC) by Paula Cox

Great MC, gambling, trust, and love story. Shayna was hostessing the poker tournament and had to control herself when she saw a Beast of a man. After meeting him and talking she found she couldn't resist him. Once she found out his name she knew it was the truth of how he looked and how he was as a man.
Beast was in the tournament to win and free himself from the MC club he was born into. He was done and just wanted sometime to his self and be his own man, but seeing Shayna and feeling the strong pull made it impossible for him to ignore her.
This story has lots of bad things happening to Shayna and Beast but they find their way through it all and find neither of them can live without the other.