Millie Mackintosh in Spanx before semi-sheer dress for Victoria's

The 25-year-old had opted to wear a flesh coloured Spanx bodysuit beneath her sweeping white gown , and she proudly displayed the shape enhancing garment while preparing for the night ahead.

Millie Mackintosh in Spanx before semi-sheer dress for Victoria's Secret show

Millie Mackintosh before half sheer dress caught in the Victoria's Secret show

Millie Mackintosh in Spanx before semi-sheer dress for Victoria's Secret show

Millie Mackintosh shows off incredible results of 'Spanx for eyes' in-clinic treatment - OK! Magazine

Millie Mackintosh caped mini dress at Cosmopolitan awards with her mother

Millie Mackintosh struggles with daring thigh-split dress as she leads scantily-clad stars at London's Fabulous Fund Fair

Millie Mackintosh puts her toned legs on display as she showcases new clothing collection

Millie Mackintosh in Spanx before semi-sheer dress for Victoria's Secret show

Millie Mackintosh switches from patterned flares to glittering golden hot-pants as she attends LFW dinner

Millie Mackintosh stuns in pink feather mini dress in star-studded event for Lancome in Paris

Millie Mackintosh shows off incredible results of 'Spanx for eyes' in-clinic treatment - OK! Magazine

Ashley James strips down to Spanx at Julien Macdonald's LFW 2016 show

Millie Mackintosh switches from patterned flares to glittering golden hot-pants as she attends LFW dinner