London, Mar 12 : Kristen Stewart has revealed that she was banned from "groping" co-star Dakota Fanning while filming an onscreen kiss for movie `The Runaways', as the latter was just 15.

Stewart, 19, and Fanning, 16, had to share a kiss during the film, which is about the 1970s rock group, with the `Twilight' star playing Joan Jett and the `I Am Sam' star playing her bandmate Cherie Currie.

"She was 15, and I wasn't allowed to grope her. I'm actually not kidding, there are major restrictions that I don't remember (from) when I was younger," the Daily Star quoted Stewart as saying.

"I don't want to give anything way. It's a really passionate, hardcore scene," she added. (ANI)