Robert Pattinson Joins Sienna Miller for Tom Sturridge's Early Birthday Party—See the Pics!

Kristen Stewart's ex joins engaged couple for night of celebrations in London

By Rebecca Macatee Dec 06, 2013 4:55 PMTags
Sienna Miller, Tom Sturridge, Robert Pattinson© PacificCoastNews

Sometimes even Robert Pattinson ends up being the third wheel!

The Twilight actor joined Sienna Miller on Thursday, Dec. 5, to celebrate his BFF Tom Sturridge's 28th birthday with a night out in London. Tom's actual B-day isn't until Dec. 21, but that didn't stop him from having some fun with his best friend and fiancée!

Tom dressed very casually for the night, wearing a black beanie with his plain blue shirt and trousers. Sienna, 31, looked a bit chilly but absolutely adorable in a white dress paired with black tights and ankle booties. And Rob, 27, looked effortlessly cool in jeans, a white shirt and leather jacket with artwork embroidered on the front.

© PacificCoastNews

Kristen Stewart's former love appeared to be flying solo for the evening, even piling into the same car as Tom and Sienna at the end of the evening. He is, however, reportedly dating Dylan Penn and a source tells E! News the duo are well suited for each other.

Ms. Penn, the daughter of Sean Penn and Robin Wright, is one lady a lot of us would love to trade places with! According to U.K.'s Glamour magazine, Rob is the second Sexiest Man of 2013. And just who beat out Mr. Pattinson for that top spot? Henry Cavill, who we must take into consideration, plays Superman in Man of Steel.

Rob is still super-sexy himself!