Iris Law suffered a wardrobe malfunction as she headed to the Valentino afterparty alongside Lily Allen in Rome on Thursday.

The model, 25, nearly had a nip slip in her perilously plunging pink slip dress which feautred a diamante detail along the chest.

The garment also featured spaghetti straps while Iris added height to her frame with a a pair of striped heels.

Wearing her blonde locks in a pixie cut, the star complimented her look with a white handbag. 

Lily, 40, opted for a baby blue dress with a low cut neckline and a bow detail along the front.

The singer wrapped up for the evening in a brown leather jacket with a shearling collar and also sported red leather gloves. 

Letting her raven tresses fall loose down her shoulders, Lily completed her look with a pair of snake skin boots. 

Iris, who recently modelled Casablanca's new Resort 26 campaign, has been taking the fashion world by storm in recent years.

She made her catwalk debut for lingerie giant Victoria's Secret last year, where she appeared alongside sisters Bella and Gigi Hadid, Emily Ratajkowski and Lila Moss.

The Daily Mail exclusively revealed Iris wanted to indulge in very specific sweets after her appearance at the lingerie show, a request that resulted in her assistants frantically darting around the city.

It's understood she had asked her team to track down specific cookies from one bakery and smoothies from another.

Iris previously discussed her personal sense of style during an interview with Vogue Espana.

'I don't dress for anyone, I just try to feel good and be comfortable. I let myself be carried away by how I am in an intuitive way, even if it's not what is understood as chic or cool,' she said.

'I have gone through many phases: more feminine, more androgynous... I like to change; every day is different.'

Iris also admitted to struggling with anxiety and using exercise as a constructive coping mechanism.

She said: 'I love lifting weights; I think it's great for maintaining hormonal balance and it also helps me sleep better. In general, I've noticed a big change in controlling my anxiety, also since I started running.'