(Cover) - EN Showbiz - Kristen Stewart's nerdiest habit is "only watching the cooking channel", claims Robert Pattinson.

The stars have been promoting The Twilight Saga: Breaking Dawn - Part 1 at the popular Comic-Con book, film and television convention in San Diego, California.

There is huge speculation around the picture, which is the penultimate instalment in the vampire franchise, although journalists at the event were equally intrigued to find out more about Kristen and Robert's off-screen romance.

The pair have been dating since 2009, and Robert has revealed his girlfriend takes care of him in the kitchen.

When asked about their "nerdy" qualities, Robert teased that Kristen "only watches the cooking channel".

"Especially on set, she has a TV in the make-up trailer- it's her only diva-ish behaviour. Having the cooking channel on all the time in every room," he laughed.

Kristen did not deny her fondness for culinary emissions. However, she was quick to point out the Robert gets to enjoy the fruits of her labour.

"You all reap the benefits!" she exclaimed.

Despite being in a happy relationship with 21-year-old Kristen, the 25-year-old heartthrob admits he appreciates ladies of all ages. Robert insists he isn't unnerved by having older women swooning over him.

"I'm not creeped out at all!" the hunk smiled. "Different strokes, different folks, I guess." (C) Cover Media