Prince William's new sister-in-law, dubbed Her Royal Hotness after her appearance at his wedding, is expected to be questioned by police after her companion pointed the realistic-looking weapon at a photographer who was following them. Scroll down for video 
 
 Gun drama: With Pippa in the front seat, the driver of the car had produced a pistol from the glove box 
 
 Pippa's male companions appear to find the gun stunt hilarious as stunned onlookers struggled to make out if the weapon was real 
 
 Taking aim: As the others laugh and smile, the driver of the car Pippa was in points the pistol directly at a photographer 
 
 Firearm terror: With the future Queen's sister sitting next to him, the man continues to point the weapon in the direction of a photographer Retail therapy: Pippa had made a last-minute dash to the shops before hopping into the convertible Audi belonging to her male companions in Paris 
 
 On the gilded throne: A smiling Pippa Middleton and other female guests join the Vicomte de Soultrait, who is wearing a dog collar and chain Party people: Pippa posed happily with the Vicomte de Soultrait (left) during the party thrown for her close French aristocrat friend 
 
 If they prosecute, the sister of the future Queen is likely to be called as a witness. The incident occurred hours after Pippa, 28, was guest of honour at a decadent 18th century-themed party thrown by her close friend, the French aristocrat and designer Vicomte Arthur de Soultrait, on Friday. De Soultrait is an aristocratic fashion designer, and a friend of Pippa's (she previously stayed at his Paris apartment last May after attending the French Open). Party girl: Pippa, dubbed 'Her Royal Hotness', appeared relaxed and in a celebratory mood during the decadent 18th century-style party 
 
 Decadent: The partygoers in fancy dress pose around the throne with Pippa 
 
 The 'highlight' was the sight of a brunette stripper bursting out of a birthday cake and entertaining the guests, including Pippa, to a risque burlesque show which culminated in her striking her metal chastity belt with an electric angle grinder, showering the audience in sparks. The image shows Middleton, the younger sister of the Duchess of Cambridge, Kate Middleton, looking back at the paparazzo and grinning as her friend, the driver, reaches down and aims what appears to be the gun. Everyone in the car could face two years in jail, whether the gun is fake or real. "I think, in fairness to her [Pippa], it will be interesting to know whether she told this guy off after he'd done something as stupid as this or whether she thinks it was all a big joke because in the pictures, unfortunately for her, it does look as though she found the funny side of it," he said. "Pippa has been photographed; she's been coached on how to behave," Larcombe said. Afterwards she was driven to the Gard du Nord to catch the Eurostar home in a black Audi A5 convertible with red leather seats. The shooter has yet to be identified, but, sitting in the back of the car, wearing a baseball cap, was Viscount Arthur de Soultrait, whose fancy dress party Pippa was attending in Paris. But this new incident highlights the challenges that Pippa faces as a public personality. The Sun had reported that the Paris Judicial Police department is "poised" to launch a probe into the incident, but police told ABC News that there is no investigation, because no one has filed a complaint. Buckingham Palace said it would not comment on the incident, since it does not officially represent Middleton because she is not a member of the royal family.
– A "gun joke" involving palace sis-in-law Pippa Middleton is causing a royal stir. The driver of a car that Pippa, 28, was riding in smilingly pointed what looked like a gun at pestering paparazzi in Paris over the weekend. Now he says he was just goofing around, and the gun wasn't real. "It was not a real gun. It was just a stupid joke," said a representative. The French aren't laughing, though, especially in the wake of the shocking shootings in Toulouse last month. Paris authorities warned that everyone in the car (including grinning Pippa) could face arrest and even two years in prison. "Anybody involved in the illegal use of a handgun in public is liable to arrest and interrogation," a source told the Sun. But so far, no one has filed a complaint, and the "targeted" photographer didn't feel threatened, reports ABC. The driver hasn't yet been identified. Her Royal Hotness was in the front passenger's seat, and sitting in the back were two men, including aristocrat fashion designer Viscount Arthur de Soultrait, whose wild birthday party Pippa attended (for photos, check here). Buckingham Palace reps are keeping mum, saying Pippa is a "private individual" and not their concern.