My sources tell me exclusively that at the end of the evening, or early morning depending how you see it, the four of them left the event, hugged before parting ways (a weird 4-way group hug), Kristen and Michael hopped in a cab, and Nikki and Rob walked further up the block… She stayed with him overnight, was supposed to be back in LA on Monday…. Perhaps she couldn’t get up, or perhaps she couldn’t leave?

unlikely Pattinson and Reed could carry out any sort of secret romance with out photogs grabbing a shot or two of the couple together.

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Here are seven co-star pairings who broke all the rules and did the dirty with the same person. Lily Collins Taylor Lautner dated Lily Collins after meeting her on the set of Abduction in 2010. Before these two lovebirds broke all of our Bella and Edward hopes and dreams when they tragically split, Rob actually went on a blind date with artist Soko. On-screen sisters Nikki and Ashley were both involved with Ryan Phillippe.

Sadly, they split up just a week before the movie premiered, making for rather awkward interactions on the red carpet. Nikki in 2007, way before she married her husband Ian Somerhalder, and Ashley later in 2013.

"The thing with Rob, Kristen [Stewart] and even Nikki [Reed], they like doing stuff private," Lutz shared. No." WATCH: Scruffy Robert Pattinson Crashes a Wedding in Ireland!

That being said, if the 30-year-old actor did happen to get an invite to Pattinson and FKA twigs' wedding, he'd be there.

Um, I will if his bodyguards let me."So could Niks (who's happily married to former the gal who typed the virtual diss:"I never tweeted that guys. Anyone can write a tweet with my Twitter handle," Niks explained.

And for all of you mega-fans who are bound to say Reed's lying, it's actually quite easy to fake a tweet these days, no super photo shopping skills required (a la Rob's poster). Reed's still working to shoot down rumors—her romantic involvement with Rob, who later became her former BFF's boytoy, didn't exactly make Reed the most popular gal on set. Let's get it together and stop getting excited over negativity."So, the musician, the artist, the jock, the cheerleader ... Nikki Reed made headlines recently after she went public with her new beau, Ian Somerhalder.He has been linked with nearly everyone, including his other costar Kristen Stewart.Despite all the rumors, there doesn't appear to be any truth to Robert Pattinson and Nikki Reed hooking up.VANCOUVER, Canada, April 3rd., (TOTI) -- Nikki Reed is the latest female to be in a rumored relationship with New Moon costar Robert Pattinson.