In an interview with Entertainment Weekly, a feisty Kristen Stewart has addressed reports of her off-screen romance with Robert Pattinson. "I probably would've answered it if people hadn't made such a big deal about it," said the 19-year-old. "But I'm not going to give the fiending an answer.' "

When Pattinson, 23, who was also at the interview (as was co-star Taylor Lautner) tried to softly interject, Stewart cut him off. "I've thought about this a lot," she told the magazine. "There's no answer that's not going to tip you one way or the other. Think about every hypothetical situation: 'Okay, we are. We aren't. I'm a lesbian.' I'm just trying to keep something," she said. "If people started asking me if I was dating Taylor, I'd be like 'F— off!' I would answer the exact same way."

As Twi-hards drool in anticipation of the Nov. 19 release of New Moon, its stars are finally weighing in the question on every fan's lips: are they a couple? Although Pattinson told Vanity Fair that he and Stewart are just "good friends," an eyewitness tells WHO that the co-stars "snuggled up next to each other" on a first class flight from Vancouver to Los Angeles on Oct. 29. "They definitely acted like a couple."

The next day, at a post-production meeting for Eclipse - the third film in the saga - the pair shared another cosy moment, a source tells WHO: "They definitely gave off a boyfriend-girlfriend vibe ... they were very cute together and snuck off to a corner of the studio for a long goodbye hug."

For more on the private lives of Robert Pattinson, Kristen Stewart and Taylor Lautner, see this week's WHO magazine, on sale Friday, Nov. 6.


NEW PHOTOS: Rob Calls Kristen Unique

Twilight Stars Before They Were Hot

Twilight's Rob & Kristen: The Truth About Us