Loud and Clear (Beat Boyz #3)
Lupa Garneau

Casper had to grow up overnight after his mother died, leaving a thirteen year old girl in the hands of a drunk and abusive father. Trying to hold down two jobs and fight for custody of his sister, he's been jaded by the experience and feels if he's going no where in his life.
That changes when he meets his co-worker, Adrian, a vibrant, happy guy with an infectious smile. Not to mention, he's hot to boot. Adrian shows him that it's okay to take some time out for himself and to enjoy what you've been given in life, but as things heat up with the custody battle, he may be forced to chose between his sister or Adrian.