Lauren Silverman has long been part of Simon Cowell's harem of friends.
However, following her recent divorce settlement, Lauren and Simon have now made their romance official following their reunion in the French Riviera last week.
Having returned from France on Tuesday, they have wasted no time in establishing themselves as an official couple as they dined out with Louis Walsh and pals on Wednesday night.
No hiding: Simon Cowell, Lauren Silverman and Louis Walsh arrive at Scalini restaurant in Chelsea on Wednesday night
Baby on board: Lauren is thought to be around three months pregnant with Simon's baby
The music mogul proudly showed off his pregnant lover as the pair joined The X Factor UK judge at the Scalini Italian restaurant in Chelsea.
Mother-to-be Lauren, 36, showed off her tiny baby bump in a pink dress and white high-heeled sandals.
No doubt Simon and Louis would have been talking about the new series of The X Factor, which returns to ITV this weekend.
Kiss me quick: Simon and Lauren put on another show of affection
Talking X Factor? Louis seemed in good spirits as he joined Simon and Lauren for dinner
Travelling in style: Lauren and Simon arrived in a chauffeur-driven car with white leather interiors
Simon's evening at an Italian eaterie comes after his surprising lunch trip to affordable French chain restaurant Cafe Rouge.
Despite having spent the past few weeks on the French Riviera, Simon was still in the mood for Gallic cuisine.
The 53-year-old music mogul was spotted surveying a menu as they sat outside a branch of Café Rouge - where the average lunch set menu costs £9.95 ($15.45) for two courses.
Sitting on opposite sides of a small outdoor table, the couple held hands and talked quietly amongst themselves, seemingly oblivious to the stir their presence had created amongst fellow diners.
So happy: Lauren looks thrilled to be with Simon after a stressful few weeks
What's so funny? Lauren seemed comfortable with the Irish music mogul
Protective: Simon is making sure Lauren eats well during her pregnancy by taking her out for meals
Glamourous: Sharon Osbourne, returned to The Claridge's hotel after a night out in London on Wednesday dressed in a sophisticated black ensemble with jewelled drop earrings
Returned: Sharon Osbourne returned to The Claridge's hotel holding a yellow card in her hand on Wednesday evening
Just the three of us: Simon Cowell and his pregnant lover Lauren Silverman enjoy a not so private lunch at cafe Rouge in Knightsbridge
Hand to hand: The couple were in a tactile mood on Wednesday afternoon
The pair made the surprising decision to sit at an outdoor table despite being fully aware of the potential intrusions it entailed.
However, Cowell appeared to be in a cheerful mood as he thoughtfully stroked his chin, while Mrs Silverman quietly sipped from a glass of mineral water.
Having returned from a sunshine break in St Tropez by private jet on Tuesday, they looked refreshed after a day out in Knightsbridge, where they paid a visit to Harrods before making their way to the Basil Street branch of Café Rouge arm in arm.
Deep thinker: Cowell adopts a thoughtful pose while Ms. Silverman drinks from a glass of mineral water
Let's order: Simon Cowell raises his sunglasses so her can get a better look at the menu at Cafe Rouge
Taking orders: A waitress serves the couple during their visit to Cafe Rouge on Wednesday
While Ms. Silverman’s growing baby bump was highly visible during her trip to the French Riviera, it was harder to see during her latest outing, for which she wore a loose fitting white top, skinny jeans and strappy heels.
At one point Cowell happily obliged a passers-by with a string of photographs with his pregnant lover looked on impassively.
The pair were in a tactile mood and clearly happy to prove it to those in attendance by regularly stroking one another’s hands.
Her we go again: Simon Cowell is the centre of attention after opting for a seat at an outdoor table, in full view of the street
Standing room only: Cowell and his lover are on their feet for another photo
He's not camera shy: Cowell is all smiles as a passer-by grabs a photo of the music mogul while pregnant Ms. Silverman looks on
Cowell is back in the UK as The X Factor gears up for a welcome return to ITV this Saturday, when the series ten curtain-raiser kicks off.
The couple were joined on their flight back from France by the music mogul’s ex-girlfriend and regular X Factor assistant Sinitta.The 80's star was with the couple as they left Nice Airport, but by the time Simon arrived home with Lauren, she had disappeared.
Happy together: Cowell stepped out with Ms. Silverman earlier that day fro a spot of shopping in Knightsbridge
Stepping out: Simon and Lauren ventured for a spot of shopping before heading to Cafe Rouge for some lunch
Fancy seeing you here: Ms. Silverman greets photographers with a smile as she arrives at cafe Rouge on Wednesday
Lauren and Simon hadn't seen each other for weeks since news of their romance and subsequent pregnancy first broke.
However, after Lauren and estranged husband Andrew reached a divorce agreement, she has been free to join Simon.
Expectant: Ms. Silverman is pregnant with music mogul Simon Cowell's child
Close: Simon Cowell and his pregnant lover Lauren Silverman returned from the French Riviera on TuesdayOver the weekend, Simon and Lauren were photographed putting on an unusual display of public affection as they enjoyed the sights of France.
They were spotted kissing, cuddling and holding hands - something Simon had been reluctant to do in public with past girlfriends such as Terri Seymour and Mezhgan Hussainy.
Home sweet home: Lauren Silverman was spotted arriving back at Simon Cowell's London home with the music mogul on Tuesday
Setting up house? Simon also arrived back at his home after his romantic break with Lauren in the South Of France
In good spirits: The star seemed happy to be back home after the couple's trip