"Avengers" star, Tom Hiddleston, told Chris Hemsworth to really hit him. Chris Hemsworth stands 6'3" tall and he even gained 20 pounds of muscle to portray Marvel Comics' hero, Thor.

He is equally adept at swinging his fists with his mythical hammer. So who exactly in the world would volunteer to be actually punched by him? Well, it is none other than his co-star Tom Hiddleston.

Hiddleston reprises the role of Loki who was first seen in last year's hit film "Thor." He is the adopted brother of the "God of Thunder" with an apocalyptic case of sibling rivalry.

Loki assembles an army to conquer the planet and it will take the combined strength of Earth's mightiest heroes to stop him. Basically, one of the most anticipated scenes in the film "Avengers" would be the climactic battle between Thor and Loki. In an interview with Tom Hiddleston, the actor has explained that most of the fighting on-screen was indeed real.

"Joss Whedon, the director, came over and said, 'Guys, I'm just not really buying it. You need to sell it more. You either need to hit each other harder or you need to react bigger,'" Hiddleston shared when they were filming the fight scene.

As the actors get ready for the next take, Hiddleston took a moment to confer with Hemsworth. "I said to Chris, 'Dude, just hit me. Just hit me because I'm protected here and it's fine.' He's like, 'Are you sure?' I was like, 'Yeah, it will look great. Just go for it,'" Hiddleston said.

Afterwards, cameras started to roll and then the action between the two "Avengers" stars begin. "Chris really went for it and he's just pummeling me in the chest and elbowing me in the face and Joss came back after that take and went, 'We got it. It's great,'" Hiddleston further shared.

Asked about what his reaction is to actually hitting his co-star, Hemsworth just chuckled and recalled that there was a moment when Hiddleston doubled over a bit when a body blow connected. "I turned to the crew and I said, 'He told me to do that! You all heard that,'" Hemsworth revealed.

However, Loki fans need not to worry for Tom Hiddleston did have a certain amount of protection from his elaborate costume which weighed 30 pounds. Hiddleston said that the additional weight, including the seven pounds for his horned helmet, made it even a real challenge for him to perform the fight scenes especially in the heat of New Mexico where they filmed most of the movie.

Hiddleston even revealed that he had good time throwing down against a superhero. "It's fun. I love shooting action because your brain switches off. You enter almost a Zen-like state where you're just infusing choreography with emotion. It's like a dance," the actor said.

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