Fireman’s Carry by Eli Easton

In the midst of a California wildfire, two opposites find their only hope for survival is each other.

This was Shane’s worst nightmare—a wildfire that threatened the California mountain town where his grandfather lived. He had to get Pops out of there. Thank God for the young firefighter they assigned to him at the barricade. With the handsome but oh-so-butch Mike Canali along for the rescue mission, everything would be okay. Or at least that’s what Shane kept telling his inner drama queen. This wasn’t the time to panic!
Mike had been on the job with Cal Fire for only two weeks, but he came from a big Italian family full of firefighters, so he recognized serious trouble when he landed in it along with the flamboyant gay guy named Shane, and Shane’s crotchety grandfather.