Coleen was pictured at the family occasion with her youngest son Klay, five months, and together they made a gorgeous sight!
The mum-of-two, 27, stunned in a pretty patterned dress with rose detail, which she teamed with a pair of statement earrings.
Coleen opted for smokey eye make-up, a nude lipstick and she completed her look with half-up and half-down hair and a red manicure.
Klay, meanwhile, looked cosy in white and literally beamed at the camera as they posed for their picture outside the venue.
Coleen, who is married to England footballer Wayne, shared the snap on Facebook and was inundated with comments from her fans.
One said: "Lovely picture and beautiful happy baby x" Another added: "Congrats to your cousin. Such a cute baby."
Coleen is not the only star to have given birth this year. Check out our gallery below:
Copyright: Love & Lust London