Prince Harry and Cressida Bonas on Swiss ski holiday

On the slopes of the Verbier ski resort, Prince Harry and his society girlfriend Cressida Bonas seem to be closer than ever.

The very public display of affection, in front of dozens of fellow skiers, came only a few hours after even more intimate revelries at a restaurant in the town.

Fellow diners in the wee small hours at the Pot Luck Club restaurant in the resort’s Farinet Hotel were entertained by the sight of Prince Harry bouncing  24-year-old blonde model Cressida Bonas on his knee.

Prince Harry and Cressida Bonas were said to have “kissed like love-struck teenagers in the back of a cinema”.

The other end of the same table was an altogether more sober affair. Prince Harry’s uncle, Prince Andrew, whose 53rd birthday on Tuesday they were celebrating, sat with his ex-wife, Sarah, Duchess of York, and their two daughters, Princesses Beatrice and Eugenie.

Princess Eugenie’s boyfriend, Jack Brooksbank, briefly strolled over chatted to Prince Harry and Cressida Bonas. But for the most part they had eyes only for each other. The Yorks traditionally enjoy a week’s skiing in the resort every year to mark Prince Andrew’s birthday, often inviting photographers to capture the event. This time, perhaps not unsurprisingly, the invitation was not extended.

The family had booked a table for 20 at The Pot Luck, where they ordered steak and king prawns and drank $27 champagne cocktails.

As the night drew on, Prince Harry and his socialite girlfriend became increasingly tactile.

Shortly before midnight, Cressida Bonas, who wore a minuscule black dress and heels, showing off a pair of endless legs, stood up and walked over to sit on Prince Harry’s lap.

The pair then began to kiss, with Prince Harry stroking the back of her head as they did so, in a passionate clinch for several minutes.

A witness said: “We couldn’t believe what we were seeing. They were not being discreet about it.
“The Duchess of York and Eugenie sat just a few seats away at the time and seemed to be deliberately looking the other way, making polite conversation while it was happening.

“Afterwards, Harry’s girl stayed sitting on his knee while they chatted to his friends.”

The diner went on to reveal: “At one point, a waiter brought over a tray of vodka and Red Bull and Harry shouted: <<Free drinks on the house!>> Everyone seemed to be having a great time.”

Although Prince Andrew left shortly afterwards, the younger royals went on to an exclusive bar above the restaurant, before moving to a basement nightclub, where they stayed until 3.30 a.m.

Despite the late night, however, Prince Harry and Cressida Bonas still hit the slopes yesterday morning and were again seen openly hugging and kissing on the slopes, which were packed with half-term visitors.

Both appeared to be extremely competent skiers and spent most of the day on the mountain.

At one point, taking a break from their fun, Prince Harry was seen putting his arms around Cressida Bonas’ waist while she rested her head on his shoulder.

Cressida Bonas, who wore a white woolly hat with a fur bobble and pink salopettes, appeared relaxed and could be seen laughing with the Duchess of York as they left the slopes.

She and Princess Eugenie were also seen lying on the snow and giggling as they played with a large St Bernard dog.

Last summer’s disastrous Las Vegas stag trip, during which Prince Harry, now 28, was pictured naked – a faux pas which reportedly led to him being dumped briefly by a furious Cressida Bonas – seems a very long time ago now.

So, for that matter, does his previous, long-term relationship with the Zimbabwean heiress Chelsy Davy, who dumped him in 2011, reportedly because she could not face the prospect of being in the spotlight as a royal wife.

Since Vegas, Prince Harry, in his guise of Captain Wales of the Army Air Corps, has served a four-month tour of Afghanistan as a co-pilot in an Apache attack helicopter.

At the end of his service he talked of having a new maturity. A few months earlier, he had complained on American television that he would like to settle down, but girls were put off by his royal status.

The couple are said to have started dating last May, though they only appeared as an item on the public radar when pictured leaving a Mayfair nightclub in July.

They had spent the evening “kissing and cuddling” inside Le Salon after attending the latest Batman premiere.

Prince Harry’s cousin and Cressida Bonas’s good friend Princess Eugenie is said to have brought them together.

The daughter of renowned Old Harrovian businessman Jeffrey Bonas and Sixties model Lady Mary Curzon – who posed semi-naked for a coffee table photographic book and went on to get married and divorced four times – Cressida Bonas is a familiar figure in London’s upper-class social scene.

As a teenager, Cressida Bonas was labeled by society bible Tatler as “really pretty, really nice and absolutely obsessed with Eva Cassidy [the late American singer]”.

After splitting up with Chelsy Davy, Prince Harry was linked to a string of women, including model Florence Brudenell-Bruce. But Cressida Bonas seems to be the one he has been most smitten with.

Like Chelsy Davy, “Cressie” went to Leeds University where she dated Harry Wentworth-Stanley, son of the Marchioness of Milford Haven. After graduation, that relationship cooled. Now she has a prince in her life.

Last year Cressida Bonas and Prince Harry flew together to the Caribbean island of Necker for the birthday of tycoon Sir Richard Branson’s son Sam, who is engaged to be married to Cressida’s beautiful half- sister, the actress Isabella Anstuther-Gough-Calthorpe.

This week’s ski holiday, to which Prince Harry had flown on budget airline easyJet, is significant in royal terms for more than one reason.

It is the first time in many, many years that Prince Harry has been seen in public with the snubbed Duke of York’s ex-wife.

Sarah was robustly frozen out by the Royal Family after being photographed having her toes sucked by her “financial adviser” in the South of France, an incident which precipitated her divorce from Prince Andrew.

And despite enjoying a close relationship with prince Harry and his brother Prince William while they were growing up, they had little to do with Sarah after she fell out with their mother Diana, Princess of Wales, shortly before her death.

Prince Andrew, however, has always championed his ex-wife and, despite the fact that she was pointedly not invited to the Duke and Duchess of Cambridge’s wedding, will no doubt be feeling pleased that his nephew Prince Harry is rekindling their relationship once again, thanks to Cressida Bonas.