Kristen Stewart texting Rupert Sanders behind Robert Pattinson's back?

According to OK!, Kristen Stewart is texting Rupert Sanders behind Robert Pattinson's back.

OK! "sources are worried [Stewart] may blow it by staying in touch with her former lover."

"Kristen is saying all the right things to Rob, but she's not being totally honest with him," claims a so-called "insider" for the magazine. "Rob made her promise to stop talking to Rupert, and she's broken that promise already."

The OK! insider add "Kristen justifies it because, technically, she's not actually talking to him, so she feels like she's still keeping her word."

Chris Brown and Rihanna Had Sex in Club?

Chris Brown and Rihanna were spotted making out at NYC's Griffin nightclub Monday night, Us Weekly, reports.

Celebuzz first reported news of the former couple's PDA.

The former couple were "hugging and kissing," an eyewitness told Celebuzz.

Brown, 23, and Rihanna, 24, have been secretly hooking up.

Brown's girlfriend of nearly a year, aspiring model Karrueche Tran, 23, was "totally pissed off," a source told Us. "She felt the kiss was a public slap in the face."

On Monday, Tran tweeted, "There's a difference between a man and a boy." She added, "I prefer men."

Khloe Kardashian and Mario Lopez to join X Factor

Khloe Kardashian and Mario Lopez will join X Factor.

TMZ reported Tuesday that both Kardashian, 28, and Lopez, 38, will be co-hosts on the reality competition this season, with the official announcement expected later this week; a source confirms the deal to Us Weekly.

An X Factor source told Us Lamar Odom's love had impressed Cowell and other FOX network executives. "Simon liked her spunky personality!" the show source revealed.

"We have screen tested a load of people. . .It could be a Kardashian," Cowell said. "I think that would work. I'm quite a fan of not putting [experienced] hosts on this show. Because I think it's going to give it a different dynamic. So we have to find people who have a great chemistry, but Khloe is definitely up there in running."

Amanda Bynes hates Lindsay Lohan

Actress Amanda Bynes reportedly hates Lindsay Lohan.

"She obsessively hates Lindsay," says the Bynes pal. "She rambles about 'that bitch Lindsay' all the time."

While a rep for Lohan insists "there is no feud" between the two actresses, both 26, are equally messy.

"Why did I get put in jail and a Nickelodeon star has had NO punishment(s) so far?" Lohan tweeted September 16.

Bynes, made a name for herself as a child star on Nickelodeon's sketch comedy show, All That.

Says an insider close to the troubled star, "Amanda is spiraling out of control. She won't accept help from anybody . . . She's completely lost."

Robert Pattinson and Kristen Stewart romantic dinner date

Actor Robert Pattinson and girlfriend Kristen Stewart reportedly couldn't keep their hands off each other during during a romantic dinner date.

The couple split when it was revealed that Stewart had a fling with married director Rupert Sanders.

"Robert and Stewart had dinner at the Soho House in West Hollywood Saturday night and they looked like a couple, smiling, holding hands. It was like old times," contactmusic.com quoted a source as saying.

"They were with a few other friends, two guys and another girl. They sat in the restaurant which is decorated with really beautiful lights everywhere. It`s really romantic," added the source.

"Both of them were dressed casually. They were laughing a lot with their friends and stayed for a pretty long time. Like from nine until past midnight. Occasionally Rob and Kristen would go outside to smoke."

"What`s funny is that they acted really comfortable with each other, like none of that affair drama had ever happened. They didn`t act awkward or embarrassed at all. It was great to see them back together and happy," said the source.