Mel B slips in to a figure-hugging lace dress as she dines out with Ashton Kutcher and Mila Kunis

Lacy Spice: Mel B slips in to a figure-hugging lace dress as she dines out with Ashton Kutcher and Mila Kunis

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UPDATED:

13:55 GMT, 3 November 2012

She is regularly spotted out and about with her personal trainer in Sydney where she is currently living.

So it’s no surprise that Mel B likes to show off her toned body whenever she gets a chance, particularly when rubbing shoulders with the Hollywood elite.

The former Spice Girl made sure that all eyes were on her in a short lace number as she attended a dinner hosted by Ashton Kutcher and his girlfriend Mila Kunis.

Racy: Mel B wears a typically daring dress that shows off her figure

Racy: Mel B wears a typically daring dress that shows off her figure

The 37-year-old showed off her shapely legs in the short dress which featured a sheer top half revealing her black underwear beneath.

Her legs were elongated by the platforms, which also had lace detailing and what looks like jewel encrusted heels, that she teamed her outfit with.

She completed the look by wearing her hair loose and wavy down her back.

Friends: Mel and her husband were joined by Brian McFadden and his new wife Vogue Williams

Friends: Mel and her husband were joined by Brian McFadden and his new wife Vogue Williams

Dining out: The four friends attended a dinner hosted by actor Ashton Kutcher

Dining out: The four friends attended a dinner hosted by actor Ashton Kutcher

Mel was accompanied by her husband Stephan Belafonte, who looked very dapper in a slim suit and tie.

The duo was joined by her X Factor Australia co-star Brian McFadden and his new wife Vogue.

Brian and Vogue looked much more low-key than Mel and her husband with Brian opting for a pair of burgundy chinos, checked shirt and white pumps.

Exercise: Mel's figure is the result of a lot of hard work and regular exercise

Exercise: Mel's figure is the result of a lot of hard work and regular exercise

Vogue wore simple black jeans, with a white t-shirt and heels.

Irish singer Brian was clearly excited about attended the meal and boastfully tweeted: ‘having dinner with @aplusk and @mila_kuniss . As you do.’

The dinner was held by the famous actor to promote his successful business investment Airbnb.

Newlyweds: Vogue and Brian were much more dressed down for the meal

Newlyweds: Vogue and Brian were much more dressed down for the meal

He was accompanied on the business trip with his partner of six-months Mila Kunis.

It hasn’t been all work though, the couple have been spotted sight seeing seaside suburb of Bondi and later walked along the scenic coastline to the neighbouring Bronte beach.

Taking a seat: Mila Kunis joined her boyfriend on his business trip to Sydney

Taking a seat: Mila Kunis joined her boyfriend on his business trip to Sydney