The pair, along with costar Taylor Latuner, followed up their The Twilight Saga: Breaking Dawn Part 2 premiere in the German capital with a trip to a local bowling alley.
It was 3 am Saturday morning before the trio left, with Rob and Kristen departing in the same car.
As RadarOnline.com has been reporting, Stewart has worn a series of scandalously sexy outfits to the U.S., UK, Spanish and German premieres of their final Twilight flick.
The globe trotting three stars got out of their fancy duds for their impromptu bowling party, though, with Stewart and Pattinson both spotted wearing jeans and black leather jackets.
It's back to L.A. for the twosome who are still trying to pick up the pieces of their romance, shattered last summer when Kristen was caught cheating with her married Snow White & The Huntsman director Rupert Sanders.
They're now living in separate houses just minutes apart in L.A.'s Los Feliz neighborhood.
Now That’s Scandalous! Kristen Stewart Wears Daring, Sheer Gown At Twilight Premiere
Together Again! Robert Pattinson & Kristen Stewart Strike A Glamorous Pose At Twilight Premiere In L.A.