The reality TV star, 26, was joined by best mate Billi Mucklow and Lauren Goodger at London bar and restaurant STK.
Wearing a gorgeous vintage-inspired cream dress which complemented her deep tan, Cara looked sophisticated and elegant.
Meanwhile, Billi Mucklow showed off her amazing body just months after launching her own Bikram yoga studio.
Looking super trim in a crop top and pencil skirt, Billi was a walking advertisement for her own business!
Posting a picture of herself and birthday girl Cara the next morning, she wrote the message: "Loved @STKLondon last night, paying for it today #hangover #help."
Lauren Goodger also partied the night away with Cara and Billi - despite wearing towering red peep-toe heels.
The statement shoes were worn with a black skirt from River Island and cutaway body top from The Boutique Essex.
Earlier in the day, Lauren posted a picture of her perfectly-applied make-up, with the message: "I love my hair and make up by @beauXbX .. I'm already girls."
It's good to see the Essex ladies are still as glamorous as ever!!
What do you think of Cara, Billi and Lauren's outfits? Tell us below!