Robert Pattinson and Kristen Stewart have been spotted for the second night out with friends, following their much anticipated reunion since the British hunk flew in to LA from Australia over the weekend.

As if trying to pay tribute to all their common friends who accompanied Kristen during his absence, Robert, who could have been very-much jetlagged after a long trip from Australia, has joined his girlfriend in a birthday celebration of Katy Perry’s assistant, Tamra Natisin on Wednesday, March 20.

A video of the couple with Katy Perry and her assistant, Tamra had been posted on YouTube showing the Twilight lovers having a good time with friends. Joining them are other common friends of the singer and her assistant, Tamra.

The six-second video began with an image of the birthday celebrate then it cut to a wide-eyed, nodding male guest, then cut to Katy in black and white stripe top, who was heard leading everyone to sing “Happy Birthday” for Tamra. Katy was holding a plate with what looked like a chocolate cake and she was handing it out to Tamra as the camera panned to the left, revealing Kristen on her feet, standing on a chair next to Rob. It was just another second when the video ended in a close-up of the cake.

It wasn’t clear if Kristen was lighting a candle of a chocolate cake near her. According to People magazine, the “On The Road” star appeared to be taking picture of Robert and Tamra while Katy was singing.

This isn’t the first time that Kristen was seen with the birthday girl. While Robert was getting his hands dirty filming The Rover in many remote areas in Adelaide, Australia, Kristen was reportedly killing time as she was waiting for Rob.

Kristen was last seen with Tamra and more of Robert’s friends, including Marcus Foster on March 5, when she attended a concert (by Foster and his bandmates) at Hermosa Beach Los Angeles California.

Read IBTimes-AU Full Report:
Kristen Stewart Partied with Robert Pattinson’s Friends at Marcus Foster Gig [MORE PHOTOS]

Tamra was with Kristen too , along with hunkie co-star Taylor Lautner, at another concert by Foster’s band in Hollywoo’d top spot, club Troubadour the following day, March 6.

Read IBTimes-AU Full Report:
Kristen Stewart and Taylor Lautner in Matching Hats Partying with Robert Pattinson’s Friends [PHOTOS]

Tamra’s birthday celebration is Robsten’s second public appearance together since Rob flew in from Australia to LA. They were first spotted getting loved-up at a karaoke bar near their home in Los Feliz.

A smoky picture of the couple with a fan during their first night out together after 64 days came out showing Robsten posing with a fan.

"They seemed really happy to be with each other," an eyewitness to the reunion exclusively tells E! News.

“ Rob and Kristen were having so much fun together," the insider said. "They sat in the back of the bar in a booth and were laughing. At one point, they were standing at the bar and were just being normal, as any boyfriend and girlfriend would be with each other.

The couple spent their first public appearance after their separation for two months on Wednesday March 19 and they spent the romantic evening at Ye Rustic Inn Bar in the Los Feliz, near their home in LA

Stay tuned for more updates on Robsten Reunion! The VIDEO can be viewed here

Also READ:
Robsten Reunion: A Night of Romance for Robert Pattinson and Kristen Stewart
Robsten Romance: 5 Romantic Ways Kristen Stewart Reunites with Robert Pattinson [PHOTOS/VIDEOS]
Robsten Reunion: What are Kristen Stewart’s Plans when Robert Pattinson Gets Back from Australia? [PHOTOS]

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