OK! EXCLUSIVE: Rob & Kristen's 'Blazing Hot' Love Scenes

If you weren't convinced before that Robert Pattinson and Kristen Stewart were an item, their flirty interaction on the Twilight Oprah Special dismissed any disbelief! So, how will their growing feelings for each other affect their acting? "Expect their love scenes to be blazing hot," an insider tells OK! in our current issue.

"They're as excited to be working together as the fans will be to see them," the source adds. "The idea of spending everyday together on set is a dream come true for them."

Even their co-stars notice the pair is inseparable. At the Eclipse re-shoot in Vancouver, Rob and Kristen's interaction was more than professional and Kristen "spent all her down time in Rob's trailer."

"Their relationship has never been better," our insider continues, "and they're more in love than ever!"

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TO FIND OUT MORE ON ROBSTEN'S STEAMY ROMANCE, CHECK OUT THE NEW ISSUE OF OK! IN STORES NOW!