It is just the beginnings of a round tummy, but on normally rail-thin Kate Moss it stood out a mile.
The supermodel gave the clearest sign yet that she may be expecting her second child, showing off her new curves in a see-through catsuit.
Stepping out with her rocker boyfriend Jamie Hince, the couple enjoyed an intimate dinner with Topshop boss Sir Philip Green and his daughter Chloe.
Kate's protruding stomach was clearly visible as the party arrived at her regular haunt the Ivy Club in London's Covent Garden.
Dressed up to the nines in the midnight-blue outfit, studded belt and leopard-print jacket, the 35-year-old model looked a picture of health - in stark contrast to her dishevelled public appearances of recent months.
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The table was booked for her by the private members club's owner Richard Caring, for a celebratory dinner.
A source said Kate, who has been dating 40-year-old Jamie for 18 months, had used the occasion to announce the good news.
'Tonight was a celebratory dinner to announce her pregnancy', he said. 'Kate was very dressed up just for dinner at the Ivy Club, where she goes all the time, and her belly said it all. It's great news.'
Kate has been dropping hints for months that she is planning a brother or sister for Lila Grace, her seven-year-old daughter with ex-boyfriend Jefferson Hack.
At Christmas it was reported that Kate had given her nanny Mary Davidson - who is the mother of her best pal Sadie Frost - a £2,000 bonus and told her to expect more work in the new year.
Kate and Jamie, who divide their time between her Cotswolds mansion and a £9million townhouse in St John's Wood, north London, have enjoyed a series of romantic breaks most recently in Thailand.
In recent weeks she is said to have stopped drinking and cut down on cigarettes.