Oh no! In Touch Weekly is reporting that Vesty McSparklepants (Robert Pattinson) is currently hooking up with Leighton Meester. Actually, I have no idea about the “currently” part. In Touch just claims that Vesty and Leighton have “shared at least one overnight rendezvous” but they don’t say when. Considering Sparkly Vest has been in Budapest since finishing the Remember Me promotional tour, I don’t think this alleged hookup happened recently, if at all. But In touch got a confirmation from one of Leighton’s friends, so who knows:

Robert Pattinson has shared at least one overnight rendezvous with Gossip Girl’s Leighton Meester. Rob was recently spotted entering Leighton’s New York apartment — and he didn’t leave until 11 the next morning, an insider tells In Touch.

“He ducked out of the building and hopped into a waiting car. He apparently spent the night with Leighton, and didn’t want anyone to know!” the insider says of the star, who even carried an overnight bag during his hasty exit.

A friend of Leighton’s confirms the affair, adding that the pair are still in constant contact.

“She’s having a texting romance with him, and is so into it. She talks with Rob almost daily,” her friend says. Leighton and her former boyfriend (and sometimes co-star) Sebastian Stan reportedly split earlier this month.

[From In Touch Weekly]

Yes, Leighton and Sebastian Stan only recently broke up, and I do believe it was Leighton who did the dumping. So did she dump Sebastian for Vesty? I had high hopes she would finally get with Ed Westwick, who also recently dumped his girlfriend. Ed and Leighton make a lot of sense together. Leighton and Sparkles… well, they would look cute together, but I don’t really see how their personalities would work together. Plus, I’m pretty sure Vesty is still with Kristen Stewart. After all, she just flew to Budapest to see him a few days ago, and Star Magazine is reporting this ZOMG BREAKING NEWS… Kristen and Sparkles have been photographed together right now, just this very moment in London (see photo here).

After a loooong separation, Robert Pattinson and Kristen Stewart finally reunited over the weekend — and Star has exclusive photos of the couple together.

As we detail in our April 26 issue — on sale now — the Twilight sweethearts rendezvoused for her 20th birthday on April 9 in Budapest, where he’s filming the period drama Bel Ami, then traveled together to London, arriving holding hands — until they saw waiting photographers! Then “they parted like the Red Sea,” says an eyewitness.

After visiting Rob’s parents in West London, it was on to a private hotel, where they holed up inside their room – and Rob could be heard playing his guitar and serenading Kristen.

“Their love is impossible to hide,” says an insider.

[From Star Magazine]

So they’re still together. And Sparkles is probably not cheating on Kristen. Just because I think he just adores Kristen, and Kristen would shank him if he cheated.