Amanda Seyfried believes "dating can come without sex".

The 26-year-old stars in upcoming biopic Deep Throat about 70s porn star Linda Lovelace where she plays the title role.

Amanda has revealed that she is fearful of making poor choices when it comes to getting close to men.

"I'm terrified of being promiscuous," the Mamma Mia star told the March issue of Glamour magazine.

"I don't like the feeling you get when it's not something that you truly want to do, and I hate the emotional abuse you give yourself afterward.

"It's just uncomfortable when you're with somebody and you're like, I don't really know if I'm even comfortable with this. Why did I? Eww! I think dating can come without sex."

Amanda recently dated real estate executive Andrew Joblon but they have since split and she admits that her ex-boyfriend Dominic Cooper was the last man in her life who she truly adored.

"He was my last real boyfriend," she confessed. "We still joke about having kids, like, If it doesn't work out with other people, we might as well just have a child.' And there's a part of that that feels possible.

"I feel like the next person I commit to, that's going to be the guy who I'm going to have kids with. That's in my crazy female brain. So that's why I'm like, I can't commit.'"