The former Pussycat Doll was all smiles as she posed alongside Max at the KEY Fashion brand launch at Vanilla London on Wednesday (25 September).
The loved-up couple, who got engaged earlier this month (8 September), looked smitten with one another as they stood on the red carpet.
Kimberly, 31, looked stunning in a silk, flower print knee-length dress, which she teamed with nude heels.
The Got To Dance judge cuddled up to Max and showed off her stunning diamond encrusted, purple gemstone engagement ring. Meanwhile, model Max went casual in a tan jacket and matching shoes, teamed with grey trousers.
Proving that they only have eyes for each other, the couple were captured gazing into each other's eyes and sharing private jokes.
Kimberly also posed for more photos with her former PCD bandmate and BFF Ashley Roberts, who launched the fashion collection last night, after becoming the newly appointed face of the brand.
Kimberly and Max have been dating since 2011 after meeting at the Clothes Show Live in Birmingham. After their engagement, Kimberly told fans on Twitter, "We are so happy!!!"
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Copyright: Instagram Mark Wright