Billi Mucklow looked sensational as she celebrated her sister Giorgie's 30th birthday party on Sunday. 

The former TOWIE star, 32, who is expecting her third child, shared a series of snaps from the garden party where they were joined by several friends and family.

Billi displayed her growing baby bump as she donned a pink mini dress with a pleated detail along with a pale yellow and blue shirt.

The star also sported a pair of sandals and large sunglasses as she celebrated her sister's special day. 

The group had a board set up with 'Gigi' written across in gold for photos along with an array of balloons and a Rosé stand.

Giorgie was also treated to an extravagant three-tiered birthday cake during the bash. 

Billi uploaded a quick clip of the garden which was decorated with pink balloons and a teepee seating area.  

Alongside the post, she wrote: 'GiGi 30th Garden Party - Had the best time celebrating my sister turning 30 with our friends and family! Love you @giorgiedark'. 

Billi, who is mother to Arlo, four, and Wolf, two, with her fiancé Andy Carroll, announced she was expecting her third child in April.

Footballer Andy, 31, has two children Emilie Rose, ten, and Lucas, eight, from a previous relationship. 

The former TOWIE star, who has been engaged to the sportsman since November 2014, captioned the black-and-white image: 'Here We Go Again! @andytcarroll - #TeamCarroll #5Aside #LoveMyBabies.' [sic]

The pair were met with praise from Billi's former co-stars, Mummy Diaries' Billie Faiers and newly-engaged Jess Wright, as well as Andy's sports pals, retired footballer José Enrique and Blackpool midfielder Jay Spearing.

The couple, who live with their children in their £5million mansion in Chigwell, have yet to confirm when their baby is due, but they have revealed they are expecting a little girl.

Billi and Andy have been together for many years, and became engaged nearly six years ago when he got down on one knee in Rome, Italy.

While nothing appears to have been arranged, the blonde had previously revealed that the couple were planning to wed in the summer of 2017.

Speaking to OK! magazine at the time, she said: 'I wanted to spend a few months enjoying Arlo as a baby before we started getting busy with wedding stuff. I definitely want a massive wedding, though.'