Why are cute guys exponentially hotter when they’re in uniform? I know I’m a sucker for a man in their official attire. Firemen are definitely at the top of that list. It’s ironic that these men are paid to put out fires, yet they’re responsible for millions of women (and gay men) getting hot and bothered at the very sight of their toned bodies.

Nation’s Bravest: Firefighters Unite is the first national firefighter calendar ever made. It was available earlier this summer, but I thought with the new year just around the corner it would be the perfect time to re-acquaint ourselves with America’s hottest heroes. Who wouldn’t want to spend 2012 looking at these guys on your wall? Or if you’re in a giving mood, you can buy it as a stocking stuffer. Speaking of which, it doesn’t look like any of these guys are stuffing their stockings, if you know what I mean.

Photographer Katherine Kostreva, traveled around the country to snap these men in their hometowns. Though it looks like they were photoshopped in the pictures, no green screening was used. Proceeds from the sale of the calendar will benefits twelve separate charities from the following cities: Charlotte, Chicago, Las Vegas, Minneapolis, New Orleans, New York, Philadelphia, San Antonio, San Francisco, St. Louis, Seattle and Tampa.

January 2012 – Seattle – Lieutenant Jason Corlett

I’m sure the line-up to ride his “Space Needle” up and down is miles long.

February 2012 – New Orleans – Captain Leonard Daigle, Jr.

He’s hotter than the spiciest bowl of jambalaya you can buy in the French Quarter.

March 2012 – St. Louis – Garon Mosby

I wonder if he’s as bendy as the St. Louis Arch.

May 2012 – Chicago – Terrance McSwain

Is that a giant axe in his hands or is he just happy to see us?

June 2012 – Philadelphia – John “Jack” Slivinski, Jr

I want him to show us why Philadelphia is the City of Brotherly Love by letting us ring his Liberty Bell.

It has come to my attention, courtesy of one of our readers, that John Slivinksi, Jr. passed away in June. Our condolences go out to his family.

July 2012 – Tampa Bay – Lieutenant Jeremy Finney

I wonder if it’s as hot and humid in his “Tampa Bay” as it is in his city.

August 2012 – Charlotte – Tommy Defrancisci

How adorable is that smile? Sorry, no obnoxious sexual pun here.

September 2012 – New York City – Philip Sylvester

How much do you want to take a bite out of his “Big Apples”? And the cheesy puns are back. Dayum, those are some juicy pecs.

October 2012 – Las Vegas – Chris Stiles

I can think of at least a handful of sins I’d commit with him in Sin City Las Vegas. Papa wants to hit his jackpot.

December 2012 – San Francisco – Kevin Kuhn

Man, those winds by the Bay Area really make the nipples perky, don’t they?

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If you want to know these men a bit better, read their bios and check out more pictures at www.nationsbravest.com. To purchase Nation’s Bravest 2012 Firefighters calendar, head over to their official website.