Lovely in lace: Imogen Thomas shows off her stunning slimmed-down figure in a tight red dress at Izabelle Hammon launch

She's often lamented that since giving birth 19 months ago, her body has never quite been the same.

But Imogen Thomas looked nothing but stunningly svelte when she stepped out at the Izabelle Hammon launch in London on Thursday.

Wearing a knee-length lace bodycon dress and killer black heels, the model showed off her trim figure to full effect. 

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Toned and trim: Imogen Thomas looked nothing but stunningly svelte when she stepped out at the Izabelle Hammon launch in London on Thursday

Toned and trim: Imogen Thomas looked nothing but stunningly svelte when she stepped out at the Izabelle Hammon launch in London on Thursday

She opted to wear her thick raven locks in softly tousled waves, and added a sweet touch to her ensemble with a pair of silver heart-shaped earrings.

The 31-year-old and her partner Adam Horsely welcomed their daughter Ariana Siena in February 2013, and since then, Imogen says she's lost at least a stone through exercise and healthy eating.

However, the size 10 former Big Brother star insists she has no desire to be stick thin.

Looking sweet: The former Big Brother star opted to wear her thick raven locks in softly touseled waves, and added a sweet touch to her ensemble with a pair of silver heart-shaped earrings

Looking sweet: The former Big Brother star opted to wear her thick raven locks in softly touseled waves, and added a sweet touch to her ensemble with a pair of silver heart-shaped earrings

Changing shape: The 31-year-old and her partner Adam Horsely welcomed their daughter Ariana Siena in February 2013, and since then, Imogen says she's lost at least a stone through exercise and healthy eating

Changing shape: The 31-year-old and her partner Adam Horsely welcomed their daughter Ariana Siena in February 2013, and since then, Imogen says she's lost at least a stone through exercise and healthy eating

The model told Reveal: 'At the beginning of the year I wanted to lose at least a stone and anything beyond that would be a bonus. 

'In terms of toning, I wanted to firm up my tummy because, after giving birth, that was the area I was most self-conscious about. Not only have I lost a stone, I've also dropped a dress size, so I'm really pleased with myself.'

Meanwhile, Inbetweeners star Emily Atack wowed in a floor-length black gown, flashing a bit of leg through her mesh skirt. 

What would Mr Gilbert say? Inbetweeners star Emily Atack wowed in a floor-length black gown, flashing a bit of leg through her mesh skirt

What would Mr Gilbert say? Inbetweeners star Emily Atack wowed in a floor-length black gown, flashing a bit of leg through her mesh skirt

Simple and classy: Emily wowed in head-to-toe black
Party dress: Michelle opted for a skater-style frock

Different shades: Emily wore her ombre hair in soft curls while Michelle showed off her newly-dyed brunette locks in a straight blowout

A new look: Fresh from getting her blonde hair dyed brown earlier in the day, Michelle Heaton also put in an appearance, teaming a cute skater-style dress with a neon pink handbag

A new look: Fresh from getting her blonde hair dyed brown earlier in the day, Michelle Heaton also put in an appearance, teaming a cute skater-style dress with a neon pink handbag

The 24-year-old wore her ombre hair in soft curls, and kept her make-up simple with a slick of mascara and nude lipstick.

Fresh from getting her blonde hair dyed brown earlier in the day, Michelle Heaton also put in an appearance, teaming a cute skater-style dress with a neon pink handbag.

Pin-up Lucy Pinder kept her curves under wraps, wearing a rather demure black jumpsuit, while singer Hatty Keane opted for an electric blue suede minidress.

Tastefully trendy: Pin-up Lucy Pinder kept her curves under wraps, wearing a rather demure black jumpsuit

Tastefully trendy: Pin-up Lucy Pinder kept her curves under wraps, wearing a rather demure black jumpsuit

Urban chic: Singer Hatty Keane  for an electric blue suede minidress

Urban chic: Singer Hatty Keane opted for an electric blue suede minidress complete with beehive hair

 

 

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