Mitchel Evans has worked hard to become a firefighter but no amount of training prepared him for posing shirtless in a national calendar.
The Thirlmere product is just one of the buff firefighters taking part in the 2020 Australian Firefighters Calendar.
Mr Evans said he had his wife to thank for the topless gig.
"My wife dobbed me in to the organisers of the calendar," he said.
"I wasn't sure at first but the more I looked into it and found out what they do for charity, I saw it as another way to give back.
"The work the team behind the calendar does is amazing."
Mr Evans said nothing could have prepared him for the experience of his first shoot.
"This is the second year I have taken part in the calendar," he said. "I think this is almost scarier than facing a fire - at least you have training to fall back on in that situation.
"It was daunting but the team is fantastic and the other guys are really great so that makes it a little easier."
The Australian Firefighters Calendar is now in its 27th year and has raised more than $3 million for various charities.
Mr Evans said he was proud to support the cause and urged locals to buy this year's calendar.
"It supports a lot of great causes," he said. "We delivered 12 semi-trailer loads of hay to farmers out west and we recently did some work with a disability charity in South Australia."
Mr Evans said he loved being a firefighter.
"I was in the air force before being a firie," he said.
"I joined the air force when I was 18 because I wanted to help people.
"So when I left the air force I wanted to do something that gave me another way to give back.
"There is not a day where I rock up to the station and hate my job.
"All the guys there have become like family."
Mr Evans encouraged the region's budding firefighters to give it their best shot.
"Don't give up, keep chipping away at it because it can take some time," he said.
"It's a hard slog but it will be worth it in the end."
The Australian firefighters Calendar is on sale at various locations across Macarthur.
To find out more or order the 2020 calendar online, visit: www.australianfirefighterscalendar.com.