Supermodel sisters Bella and Gigi Hadid lead the runway glamour at Milan Fashion Week as they unite for Max Mara catwalk show

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Supermodel sisters Bella and Gigi Hadid joined forces on Wednesday morning as Max Mara unveiled their Spring-Summer 2017 couture collection at Milan Fashion Week. 

Leading the march as proceedings got underway in the Italian fashion capital, Bella, 19, proved to be a commanding presence by exposing her cleavage and legs in a striking sheer bodysuit. 

A sweeping floor-length coat gave the revealing ensemble an elegant flourish, while embellished black shoes rounded things off. 

Runway ready: Supermodel sisters Bella and Gigi Hadid joined forces on Wednesday morning as Max Mara unveiled their Spring-Summer 2017 couture collection at Milan Fashion Week

Heavily applied foundation drew attention to the model's sculpted cheekbones as she confidently modeled the forthcoming range from the Italian fashion house. 

Daring splashes of eye-shadow gave an otherwise subdued colour scheme a vibrant twist, and the tasteful cosmetic embellishment proved to be a recurring theme on the day. 

Indeed, older sister Gigi, 21, revealed her own delicately applied lemon and white eye-shadow while following Bella onto the catwalk.

Racy: Leading the march as proceedings got underway in the Italian fashion capital, Bella, 19, proved to be a commanding presence by exposing her cleavage and legs in a striking sheer bodysuit

Incoming: Gigi and Bella led the way as Max Mara unveiled their new collection of classic designs with a contemporary twist

Striking: Daring splashes of eye-shadow gave an otherwise subdued colour scheme a vibrant twist, and the tasteful cosmetic embellishment proved to be a recurring theme on the day

The model kept her slender physique under wraps in an embellished knit sweaters and monochrome pencil skirt - both prominent features in the latest collection. 

Bold tropical prints also made an appearance on Wednesday morning, serving to push the latest Max Mara on step further from the sharply defined suits that dominated their Spring-Summer collection. 

Trading outfits, Gigi showcased one of the highlights - a stylish floral print jumpsuit and matching visor. 

A cinched waistline accentuated her slim-line figure where her previous sweater and skirt ensemble did not, while a plunging front fully exposed the model's cleavage. 

Under wraps: Embellished knits feature prominently in the new collection from Max Mara 

Unmissable: Gigi, 21, revealed her own delicately applied lemon and white eye-shadow after following Bella, who traded her skimpy jumpsuit for an embellished knit sweater (far right)

The waiting game: Bella mingled with her fellow models backstage at the event on Thursday morning

Both Bella and Gigi were focused on the job at hand as they modeled the new range for guests including American TV personality Olivia Palermo. 

The 30-year old looking typically stylish in a blue patterned blouse and on-trend flared trousers while occupying a front row seat. 

Other guests included model Caroline Vreeland, who stunned in a busty sheer top and fishnet stockings. 

The brunette accentuated her racy look by sporting a pair of skintight micro shorts and knee-length blue velvet boots. 

Plenty to talk about: Gigi and Bella appeared to be in high spirits while passing the time with their fellow models during the Max Mara presentation 

They're not sheepish: The supermodel sisters posed for backstage snaps in distinctive knitted sweaters prior to their latest catwalk appearance 

A confident display: Bella was focused on the job at hand as she led the catwalk glamour in the Italian fashion capital 

Bold tropical prints and chunky knits made a welcomre appearance on Wednesday morning, serving to push the latest Max Mara on step further from the sharply defined suits that dominated their Spring-Summer collection

Gig's jolly: The model offered a beaming smile while running shoulders with her colleagues backstage 

Making an entrance: Model Taylor Hill was amongst those taking to the catwalk at thew Milan fashion event 

leading lady: But it was Bella who stole the show at the official unveiling in a range of bold, outlandish ensembles

Supermodel style: The models stormed the runway in their colourful ensembles 

While focused on the job at hand, both Gigi and Bella were in high spirits as they posed for snaps with their fellow runway models backstage. 

However a successful catwalk appearance was overshadowed by a furious altercation with a fan shortly after the show came to an end. 

A furious Gigi appeared to lash out waving her fists and elbows around in the air after a fan appeared to lift her from behind as she and Bella made their way towards a waiting car.  

Front row guests: TV personality Olivia Palermo and model Caroline Vreeland had prime seats ahead of the Max Mara show 

Quite a difference: While Olivia opted for a tasteful blouse and flared trousers, Caroline opted for a sheer top and raunchy fishnet tights 

She's sweet enough: Caroline sipped a black coffee while waiting for the show to get underway 

Eventually security intervened and she was whisked away, looking shaken and carrying her sunglasses, which nearly fell off her head.

The sisters then got into the waiting car but not before Gigi shouted and pointed.

Gigi and sister Bella have had a whirlwind few weeks after taking part in New York, London and Milan fashion weeks back to back. 

Here they come: Supermodel Gigi Hadid was later seen leaving the Max Mara show at Milan Fashion Week alongside her sister Bella

Uproar: But as she walked to the car, she became embroiled in an altercation in the street, although it is not known why 

Outraged: Gigi could be seen waving her elbows and fists as she walked to her car after the Max Mara show

Shaken: Eventually security intervened and her sister could also be seen trying pulling the model away towards their car

Not happy: A furious and shaken Gigi was then whisked to a waiting car after the altercation at Milan Fashion Week