The actor is currently in an on/off relationship with his 21-year-old Twilight co-star Kristen Stewart. However, the Hollywood hunk has admitted that when he was a teenager he had posters of actresses and supermodels who were considerably older than him on his walls.
"I was always obsessed with Kate Moss," Robert confessed in an interview with the American edition of Elle magazine. "On my bedroom wall I had a poster of [Exorcist star] Linda Blair and Kate Moss."
The 24-year-old also admitted to having crushes on Hollywood stars Jane Fonda, who is now 73, and Ellen Burstyn, who is 78.
Robert, who became an international heartthrob when he starred as vampire Edward Cullen in the successful Twilight movie series, also admitted that his superstar status freaks him out sometimes.
Talking about a documentary that was made about him and titled Robsessed, he said that he was surprised how many people claimed to know him.
“I love these people pretending to be my friends and pretending to have met me, having insider knowledge - and actually some kind-of-famous people who’ve never met me, they just destroy their credibility in one swoop,” he added.