Although Twilight stars Robert Pattinson and Kristen Stewart have claimed that they are just friends and they are not a real-life couple, the speculations about their unannounced and stealthy romance are being made every now and then. Now director Catherine Hardwicke of Twilight series has fuelled the rumours of their secret affair by saying they have a "nervous attraction" to each other.

Director Catherine Hardwicke has claimed that the pair have been sharing a kind of complex feelings for each other. "What Rob and Kristen had is a multitude of feelings for each other. Complex feelings for each other. It was what we needed. Complete, intense fascination," Telegraph quotes Hardwicke saying.

Hardwicke has claimed that there was a "nervous attraction" on sets of The Twilight Saga: New Moon between Pattinson and Stewart. Pattinson was "always drunk" in the evenings on location and was entertaining Stewart and other cast members in his hotel room with his guitar.

However, Robert Pattinson, who is busy promoting the movie New Moon in Japan, continue to deny the rumours. Kristen Stewart, 19, is also busy promoting the movie with Taylor Lautner in Brazil. Stewart rules out the reports saying, "It's so retarded. We're characters in this comic book."