Robert Pattinson Looked 'Really Happy' With 'New Girlfriend'

Robert Pattinson has reportedly scored himself a new lady just months after breaking up with girlfriend of four years Kristen Stewart. The new couple reportedly headed to a party together over the weekend in Hollywood where the pair are said to have looked very much in love.

The 27 year-old, who was in an extremely high profile romance with his Twilight co-star, is alleged to have brought the mystery brunette along to a friend's birthday where they weren't exactly shy about flaunting their new romance.

"The party was so fun. Everyone was dancing to Frank Sinatra hits," an eyewitness told Us Weekly. "Rob was there with his new girlfriend. I don't know her name."

While the mystery lady hasn't been identified the lucky lady was reportedly heard calling the stud "babe" during the birthday bash.

"There were like 40 people at the party, it was intimate, and Rob was next to her the entire time no matter where he was," the first source said, adding that the Twilight babe is "really happy."

Earlier this week Rob was spotted heading to the gym with a very pretty brunette, but according to E! Online it wasn't a date as the woman was a trainer working with Rob for his new movie Mission: Blacklist.

It's also been alleged that Rob had a steamy date with Sean Penn's daughter, Dylan earlier this month.

The Twilight hunk is said to have hooked up with the 22 year-old on a night out at the Viper Room on Sept 7. in Los Angeles Life & Style magazine have reported.

According to an "eye witness" the pair weren't shy about hiding their affection as they partied in the club's VIP section.

“They were touchy-feely and very flirtatious," the insider revealed. "There was a level of comfort there. You could tell they’ve hung out a few times.”

Is blonde beauty Dylan Penn, Rob's new squeeze (Splash News)

Their steamy night allegedly didn't end there, as following the party the source claims the couple hit the Chateau Marmont for more drinks before heading back to Rob's home and guests didn't leave until 5am.

The insider went on: “They went into his kitchen, and he put his arms around her. Then he was kissing her neck and talking all lovey-dovey. It was clear they’d been out together before.”

The source revealed that it certainly looked like Rob had moved on - poor Kristen! The pal warned though that Rob should be careful with his new girlfriend, as her dad, Sean Penn, is said to be pretty protective.

“Sean has really high standards for his kids,” another friend added. “Any guy who dates Dylan should watch his back and treat her right!”

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