Penny Lancaster has lent her son Alastair Stewart’s new girlfriend the ultimate family seal of approval – by lending her her wedding dress.The model and Loose Women star, 55, loaned Mell-Nicole Ratto, 22, the priceless garment almost two decades after she wore it to celebrate her marriage to Sir Rod Stewart.Mell-Nicole, who is dating Penny and Rod’s 20-year-old son Alastair, showed off the vintage piece in a series of glamorous photos taken on holiday in Spain this week.The glamorous Californian law student wore the backless, heavily embellished minidress while posing in a Mediterranean courtyard.She posted the snaps to Instagram on Monday, with the tongue-in-cheek caption: ‘Monday sweatpant vibe. something light’.Penny commented: ‘You look beautiful in my vintage dress, certainly doesn’t fit me anymore,’ to which Mell-Nicole replied: ‘My fairy godmother .’ Penny Lancaster has lent her son Alastair’s girlfriend Mell-Nicole Ratto her wedding dress as she gets the ultimate family seal of approval (Mell-Nicole pictured wearing the dress) Former model Penny wore the exact same distinctive dress in London in August 2007 – when she was 36 – to celebrate her marriage to rock star Sir Rod, now 81Former model Penny wore the exact same distinctive dress in London in August 2007 – when she was 36 – to celebrate her marriage to rock star Sir Rod, now 81.The couple, who started dating in 1999, officially tied the knot in Italy two months before their wedding dinner party at the InterContinental Hotel on London’s Park Lane.The dress features a low-cut back, embellished straps and rows of silver and white detailing.Penny teamed it with strappy silver heels when she wore it 19 years ago, while Mell-Nicole opted for white pointed stilettos for her summer’s night out.Mell-Nicole’s access to Penny’s wardrobe comes as her romance with Alastair appears to be getting increasingly serious.Just a few weeks ago, she joined the Stewart clan – including Rod and several of his eight children – on a boat trip in Ibiza.Alastair is the elder of Penny’s two sons with Rod, with the couple also parents to Aiden Stewart, 15.London-born Alastair has followed his mother’s footsteps into modelling and landed a campaign with Italian fashion label Palm Angels as a teenager. Mell-Nicole’s access to Penny’s wardrobe comes as her romance with Alastair appears to be getting increasingly serious after she joined the Stewart clan on a boat trip in Ibiza Rod’s daughter Renee took to Instagram to share an array of snaps from the family holiday as they united Last year he revealed he had abandoned a fashion degree to pursue ambitions behind the camera.Alastair had enrolled on a three-year undergraduate course at the JCA London Fashion Academy before deciding it was not for him.Speaking to the Daily Mail in May 2025, he said: ‘I was attending that fashion college, but I’ve left now. I’m in a bit of a transitional period at the moment.’I’m trying to get into the film industry, and I want to follow my passion. I’ve made a few short plays, I write a lot of scripts, and I write a lot of screenplays.’Mell-Nicole is a fourth-year pre-law undergraduate at the University of California, San Diego, where she studies political science.Her romance with Alastair brings her into one of showbusiness’s largest blended families. Rod has eight children with five women, spanning more than 45 years.He welcomed his eldest daughter Sarah Streeter, 62, with his former girlfriend Susannah Boffey before having Kimberly Stewart, 46, and Sean Stewart, 45, with his first wife Alana Stewart, 81.The singer shares Ruby Stewart, 39, with his former girlfriend Kelly Emberg, 67, while Renee Stewart, 34, and Liam Stewart, 31, are from his marriage to New Zealand supermodel Rachel Hunter, 56.Rod’s children have remained close despite their wide age range, with family members regularly joining the rocker and Penny on holidays and at public events.Seven of his eight children travelled to St Barts for a family holiday to mark his 80th birthday in January 2025.