Have you ever seen her look so fab?
The pregnant ex-reality star made everyone stop and stare as she sashayed on into the swanky central London venue clad in this oh-so-cute shirt dress that featured a busy tile print, button up detail and a string tie that nipped her right in at the waist.
Months gone and we're STILL lusting after her figure! She's such a babe, right?
Billie - who rocked her new, much shorter locks in bouncy tousles - oozed so much glamour as she teamed the black and blue frock with a pair of slouchy thigh-high boots and a 90s-inspired choker.
Thankfully, she managed to avoid flashing her undies when a gust of October wind caught her unawares!
At the bash, Billie hobnobbed with fellow In The Style gals Charlotte Crosby and MIC star Binky Felstead, who were both gearing up to celebrate the brands third birthday.
Earlier this year, TOWIE original Billie announced her decision to take a break from the show to focus on other things.
Speaking to Reveal at her In The Style launch in August, the stunner said, "I just feel like I have to leave some time."
She continued, "I want to start a new chapter in my life and concentrate on other things, I mean, I do want another baby [Billie is now expecting, congrats!] and that's going to take more time. For me, filming isn't a huge commitment anymore so I just felt like now is the right time."
She hasn't ruled out a return, though.
"We're all on really good terms. It's open for me to return [and] if I want to go back I can, but I'll take the time out for this year for sure."
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