Fighting for Irish by Gina L. Maxwell

He’ll fight for her life. She’ll fight for his love.

Boston MMA fighter Aiden “Irish” O’Brien hasn’t entered the octagon since accidentally taking another man’s life. So when a friend calls in a favor to check on a young woman in trouble, Irish takes it as a chance at redemption and heads to Louisiana.
Kat MacGregor is in a race against time to settle her ex-boyfriend’s twenty-thousand-dollar debt to a dangerous crime boss. Facing a dire ultimatum, Kat’s ready to flee for her life when the mysterious new bouncer at her bar offers to let her hide out at his place.
While living together, they start to break down the walls of their troubled pasts, finding solace in each other’s arms…and in his bed. But Irish hasn’t told her the whole truth about who he is or why he comes home with new bruises every night. When his plan to pay off her debt by fighting in an underground MMA ring goes bad, Irish will need to call upon the deadly skills he locked away years ago to stop Kat from being sold to the highest bidder.
But saving her from the mob will be only half the battle. Because if Kat finds out he broke her trust, it could cost him the most important fight of his life––the one for her heart.