Kristen Stewart got giddy and flustered during a press conference for New Moon at Comic-Con on Thursday in which she was asked if there was any chemistry off camera with her hot vampire co-star, Robert Pattison. Stewart didn’t answer the question, despite saying less than a couple minutes before that reporters “can ask me anything you want.” A moderator deflected the question and moved on, and all we were left with was a few moments of tension.

There may have been a good reason for that. According to E! Online, Kristen and Robert probably – not definitely but probably – had just spent the night together at a hotel. What’s more is that Robert and Kristen are said to have been together the next night, last Thursday, in LA.

After plenty of awkward interaction at Comic-Con last week, it was almost too obvious that Rob and Kristen were being told to stay the hell away from each other.

So how did Robsten spend some much deserved free time Wednesday night before their crazy day on Thursday?

We hear from well-placed sources that Rob and Kristen were “together” Wednesday night, happy at last, on the 11th floor of the über-hip Hard Rock Hotel in San Diego.
“They were so private,” dish our in-the-know eyes. “They were hardly seen by anyone. Their people made sure of that. But [Rob and Kristen] were there. They had a secret entrance to the hotel and everything.”

Well, we were at the Hard Rock, too, and we can assure you all Robsten was nowhere to be seen in any of the common areas.

“Who knows their specific sleeping arrangements, but [Rob and Kristen] were on the same hotel floor.”

Too dee-lish. And remember how we told you Rob was given a bit of a break before heading back to New York to finish filming Remember Me? He was supposed to stay down in San Diego Thursday night, too, but instead, Rob decided to head back up to L.A. early…with Kristen!

The San Diego airport is literally 10 minutes from the H.R. hotel. That’s why Rob flew straight into S.D. Wednesday from NYC. Couldn’t possibly imagine why he would choose to depart out of LAX instead and spend the weekend up in smogville.

Interesting there are no pics of either Rob or Kristen over weekend. Let’s hope they were supersecret together, just like they were in S.D.

[From E! Online]

Many of you say that the romance between Robert and Kristen is being either hyped or fabricated to promote the next Twilight installment, New Moon, due out this November. I finally rented Twilight this weekend and although it was kind of cheesy in parts and is definitely a chick movie I loved it! There was palpable chemistry between the leads, and Pattinson was flawless as a the dreamy, borderline stalkerish superhero boyfriend. The film made me giddy and I can’t wait to see New Moon.

Rob’s possible romance with Kristen, and his maybe-fling with his other co-star, Emile de Ravin, earned him the cover of People this week. The guy is smart and gorgeous and I would bet he does have something going on with Kristen. Those two should be careful, though. An old friend of mine has a saying about dating at work (she probably didn’t come up with this, but I haven’t heard it before or since): “Don’t sh*t where you eat.” That’s probably doubly true when you’re being served gourmet meals on silver platters. God forbid that the franchise is threatened by a breakup between the co-stars.

Kristen Stewart and Robert Pattinson are shown at Comic-Con on 7/23/09. Credit: Fame Pictures. Pattinson is also shown being hugged by a fan in NY on 7/26/09. Credit: INF Photo. There are also some New Moon stills thrown in for good measure. Credit: WENN.com