Kristen Stewart and Robert Pattinson get cozy in "Twilight"

Robert Pattinson's director thought it would be "creepy and inappropriate" to tell him how to kiss Kristen Stewart.

Chris Weitz admits he took a back seat during the recording of romantic scenes between the pair, who are believed to be dating in real life, and refused to give them advice on how to approach the encounters while making “The Twilight Saga: New Moon.”

"Capturing those scenes is really a question of just allowing the actors to do their work,” Weitz said. “They know their characters. They know the tone they're supposed to hit.

"It's not like when they're about to kiss, I'm leaning in and saying, just off camera, 'Tender, tender!' or anything like that. I just let them do their thing. I think it would be creepy and inappropriate for me to advise them how to kiss one another or what it's like to be young in love. I'm 40 years old."

RPatz and KStew have been romantically linked for several months but have always denied they are in a relationship, and Weitz admits he did his best to shield the stars from outside attention.

He added to MTV: "I very much want the set to be completely free of all those concerns and any pressures that are coming from the outside world - paparazzi - and the tremendous attention that they're under."