The Fighter’s Secret Child. The Burton Brothers Series, #3

A few years ago, Rachel strutted around the ring wearing next to nothing. Now she's back with Beck's baby. and he's not letting her go. Ex-ring girl Rachel St. Martin used to love the thrill of MMA, but there was only one fighter she ever fell for. With his deep blue eyes and rippling muscles, Beck Burton stole her heart. But when she got pregnant, one taste of his explosive temper was enough to know she couldn't have him around her child.
She already lived through that with her own father. She swore she'd never go back, but with baby Chaz in need of a bone marrow transplant, Beck may be her son's only chance. Beck has had more than his share of ring bunnies, but gorgeous, red-haired Rachel is the only woman he's never been able to forget. When they fought two years ago, he had no idea she'd walk out on him for good. He may have lost his cool then, but she should have known he only uses his fists inside the ring.
Now she wants nothing more from him than a transfusion, but if Beck can get his anger issues under control, he may get a chance to win back her and his son. It's a challenge he'd hate to lose.