Amanda Seyfried may look like your average sweet, blue-eyed, Hollywood blonde, but in the new issue of ELLE, the actress opens up about taboo topics like sex and her upcoming role as a porn star.

"I read the script and I was like, 'Wow, this is the riskiest thing that's happening [in Hollywood] right now'," she said of her upcoming role as porn queen Linda Lovelace. "The first thing you think about is that it could have ruined my career. At the same time, I was like, 'This is my chance to show them, to show the industry, to be recognized.'"

Seyfried, best known for tamer roles in films like "Les Misérables" and "Letters to Juliet," was totally candid when asked about her own sex life.

"Everybody I've dated I've been sexually attracted to immediately," she said. "Sparks don't grow-your vagina doesn't become more inclined to wanting someone just because you're around them."

Seyfried has been linked to Hollywood hotties like Josh Hartnett and Ryan Phillippe. Her last breakup was in 2010 with her "Mamma Mia!" co-star Dominic Cooper.

"We love each other... He'll always be in my life regardless of what his girlfriends or future wife think," she said. "I'm never going to be with a guy that can't deal with my friendship with him."

Seyfried also fessed up to having a new love interest, but kept it pretty vague.

"[He's] someone separate from my industry life-I've known him since he was 16... I picture him as the father of my children all the time," she said. "But it is a fantasy right now."

The August issue of ELLE hit stands July 23 and you can catch Seyfried in "Lovelace" when it opens in theaters August 9.