Actress Jennifer Aniston and her fiancé Justin Theroux were spotted arriving at a party at Chiltern Firehouse on Nov. 12 after the 'Horrible Bosses 2' movie premiere in London.

Wearing a gorgeous black dress with sporting trendy glasses, the 45-year-old actress flashed a smile for the photographers. As for Theroux, he looked stylish in a coordinating black and white suit with a black coat, says E! Online.

According to People Online, co-stars Jason Sudeikis and Jason Bateman, along with their ladies Olivia Wilde and Amanda Anka were also in attendance with the the couple at the party.

On that note, Sudeikis wore a dark plaid suit and a green tie. As for Wilde, she was carrying a sleek black dress paired with a black motorcycle jacket, E! Online reported.

Stepping back to the 'Friends' actress, she said, "I've had more fun post-40 than I can remember, from a work point of view, a physical point of view, a psychotherapeutic point of view," to Harper's Bazaar.

Adding, "It really helped me get to a place where I was more comfortable with myself, truly ready for love and for a partner."

In regards to the premiere, 'Horrible Bosses 2' is an upcoming 2014 American comedy film directed by Sean Anders and is a sequel to 2011's 'Horrible Bosses'. The film is produced by New Line Cinema and distributed by Warner Bros. Pictures, and lastly, it's set to be released on November 26, 2014.