Amanda Seyfried Talks Channing Tatum: 'Everybody Wants To Have Sex With Him"

Amanda Seyfried discussed Channing Tatum, dating, playing a porn star and having an obsessive compulsive disorder in the upcoming issue of InStyle magazine. 

Seyfried, 27, fronts the cover for the January 2013 issue of the fashion magazine in a sky blue Chanel dress with metallic pointy-toe kitten heels. Photographer Dusan Reljin captured images of the Pennsylvania native known for her breakout role in "Mean Girls" and the actress discussed portraying an adult film star in upcoming film, her love life hitting the rumor mill, Tatum's sex appeal and how she manages her OCD.

The actress said what she honestly thought about her "Dear John" co-star.

"Channing was amazing. Everybody wants to have sex with him," she said. "And the only person he wants to have sex with is his wife, Jenna [Dewan-Tatum]. He's the most loyal husband."

The "Red Riding Hood" star recently wrapped production on playing the title character in the upcoming biopic of porn star Linda Lovelace. When asked to discuss her thoughts on shedding clothes for the role, she admitted it was necessary for an accurate portrayal:

"It's not about my body. It's not about me. You're playing somebody else. You're not going to believe a love scene if the people are dressed. You're not going to believe a stripper who has on a bra and underwear the whole time. At the same time, it has to do with how comfortable you are with letting people see your skin. For me, I'm okay with it."

Seyfried responded to the constant false rumors about her love life, saying that she can not date anyone without it being "portrayed as a serious relationship in the tabloids.

"It sucks!' she said. "Like Josh Hartnett and I were friends; we hung out, we dated. I don't actually have sex with every male I come into contact with."

She also admitted she suffers from panic and anxiety attacks because she is "too measure and controlling" about everything, and shared that she is currently taking Lexapro to manage her OCD:

"I don't feel like I'm struggling with it. I think OCD is a part of me that protects me. It's also the part of me that I use in my job, in a positive way."

InStyle's January 2013 issue arrives on newsstands on Dec. 14. Seyfried's latest film, "Les Miserables," will arrive in theaters on Christmas Day (Dec. 25).