Newly single Lauren, who split from boyfriend Jake McLean in December, let her hair down for the night as partied at Fifteen York Hill bar in Loughton, Essex.
Seemingly enjoying the single life, Lauren, who teamed her outfit with black leggings and a classic black Chanel handbag, looked to be in good spirits as she posed for several photos.
Pulling off her famous pout, she said: "We love a pout." She later added: "I love my girls."
Sharing more photos of the night, including a group snap, Lauren said: "Never laughed so much."
It's been a weekend of partying for the reality star, who also upped the glamour on Saturday night to celebrate a friend's birthday.
She tweeted at the time: "Had so much fun last night literally laughed the whole night! You live once never take yourself to seriously #banter #girls #fun #laughter."
Lauren announced her shock split from property developer Jake just before Christmas. The pair began dating in October 2012 but reportedly called it a day following a string of rows.
Meanwhile, Lauren has also tweeted her support for the latest batch of celebrities competing in this year's last ever series of Dancing On Ice.
Lauren competed in the celebrity ice skating competition last year but was voted off in the second week.
Before Sunday night's show (5 January), Lauren tweeted: "Good luck everyone @DOI2014UK tonight hope all goes well!! Brings back memories of me last year!! Excited for you all."