(Cover) - EN Showbiz - Kellan Lutz is an "action junkie at heart".

The American actor appears on the November cover of Men's Fitness showing off his famously chiselled body.

Kellan puts his impressive physique to good use, and describes himself as a "thrill seeker."

"I'm an action junkie at heart. I love pushing myself to the limit. I don't really have fears as far as heights, skydiving, or bungee jumping," he told the magazine.

"I love mixed martial arts, weapons training, guns, knives, driving fast cars, and motorcycles. I love it all."

Kellan puts his hard exterior down to being a submissive younger sibling. The star says his unforgiving brothers prepared him for later in life.

"I had so many older brothers who beat me up, so I'm a tough kid," he said.

Kellan is starring in upcoming action adventure film Immortals. The 26-year-old hunk stars as Poseidon in the Tarsem Singh-directed picture, and maintained his intense exercise routine while shooting the film.

"I like to wake up with the sun around 6:30," he explained.

"I'll just go for a run, drop and do some push-ups, run some more, do lunges, grab the rings, and do pull-ups."

Kellan recently launched fashion line Abbot + Main named after his California neighbourhood - with denim guru Danny Guez. The star is the face of the brand and also had a valuable input into the designing process.

"If I am going to make a product and be the face of it, I want to make a good product that I actually like," he explained. "Nothing happened unless it came through me first. Design, colours, fabrics. Danny and I talked or Skyped every day." (C) Cover Media