Dylan Penn: Identified as New Robert Pattinson Girlfriend!

The new Robert Pattinson girlfriend has been identified - and she’s no stranger to fame.

Following reports that Pattinson held hands with a mystery woman at a party in honor of friend Shoshana Bush over the weekend, and was then spotted at the gym with her in the days that followed, Life & Style sources confirm the actor is dating 22-year old Dylan Penn.

She’s the daughter of Sean Penn and Robin Wright!.

The couple allegedly spent time together inside Los Angeles’ Viper Room on September 7.

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

Following a couple hours at this establishment, Pattinson and Penn reportedly went to Chateau Marmont for drinks and french fries… and then headed to Rob’s home!

“They went into his kitchen, and he put his arms around her," claims an anonymous friend who was invited along. "Then he was kissing her neck and talking all lovey-dovey. It was clear they’d been out together before.”

When other guests left at 5 a.m., Dylan remained by Rob’s side. Oooh yeah!

Another pal of Pattinson’s says he has "finally moved on" from Kristen Stewart, but it remains unclear if Dylan Penn is the mystery woman at the center of other Robert Pattinson dating allegations this week.*

Her hair is blonde, not brown. And this report makes no mention of the very recent birthday party during which Rob and his new paramour acted like total boyfriend and girlfriend.

We’ll keep our eye on the situation, but whether it’s with Dylan, another woman or even both, one thing remains clear: Stewart likely needs a box of Kleenex about now.