Newly-divorced Jamie Redknapp was said to be romancing the French art director, who took to Instagram this morning to post a very cute upload.
The 44-year-old did not feature in her snap or accompanying caption which she shared with her 315,000 followers.
Instead, the brunette beauty, 37, posed up a storm with her daughter Romy, with whom she shares with Swedish model Robert Konjic.
Julia and her only child were seen in matching, pale pink T-shirts with an all-important logo, which referred to their close relationship.
It read: “This is no ordinary love,” while the star pouted away at the camera as she lied in bed with Romy.
She simply captioned it with two pink heart emojis, before being inundated with compliments from fellow users.
“This shirt is perfect! Where is it from?” one asked, as someone else continued: “Words are not enough to express the unconditional love that exists between a mother and a daughter.”
Julia – the daughter of Vogue Paris Editor-in-Chief Carine Roitfeld and Christian Restoin – was said to be enjoying dates with Jamie, who was first rumoured to be on the rocks with Louise early last year.
A source told the Mail On Sunday: “Jamie is a sucker for posh girls these days.
“He’s been texting Julia asking her for dates whenever she is back in London.”
The mother-of-one, who regularly showcases her slender figure on Instagram, is said to split her time between the UK and New York’s Upper East Side.
Meanwhile, it comes after Louise Redknapp reflected on life as a single mother to their two sons after they went their separate ways.
She is mum to Charley, 13, and Beau, nine, with her ex-footballer beau, following their 19-year marriage.
She told Tess Daly: “I drop the older one at the bus stop in the morning. The older one is quite stroppy, so he always gets out of the car on an argument.
“The little one is just beaming all the time. He runs to get in the car, he’s happy and telling me about his day,” in a video for Heart’s Confessions Of A Celebrity School Run, with VW Tiguan Allspace.
Express.co.uk has contacted a representative for Jamie Redknapp and Julia Restoin Roitfeld asking for comment.