4th Degree by Nikki Castle

He’s her coach.
She’s too young.
They’re both risking everything.

Forced to grow up too soon, Skylar has built her entire life around taking care of her family. But when she catches her first lucky break, she’s finally able to pick up the sport that has always intrigued her. Signing up at the local MMA gym is where she meets Coach Dominic.
Because everything in Dominic’s life is based on his reputation as a coach and fighter, he’s always kept a professional boundary between himself and his students. But when Skylar impresses him in the gym, and their post-class chats start to last into the night, that boundary begins to blur. Before long, a relationship develops between them—that they’re forced to keep behind closed doors.
While Skylar struggles to balance her feelings for Dominic with taking care of her family, Dominic has to decide if he’s willing to risk everything for a chance at love.
Will Dominic and Skylar let themselves find happiness with each other? Or is the cost of their relationship too high?