Pippa Middleton's Parisian costume party photos cause a stir

Pippa Middleton is seen at the front row during the Temperley runway show at London Fashion Week Spring/Summer 2012 at the British Museum on September 19, 2011 in London, England. (Photo by Tim Whitby/Getty Images)
Tim Whitby/Getty Images
Pippa Middleton is seen at the front row during the Temperley runway show on Sept. 19, 2011, in London.

(CBS/AP) Photos of Pippa Middleton, the younger sister of the Duchess of Cambridge, attending a friend's decadent costume-themed birthday party in Paris have surfaced in tabloids, where guests' racy costumes included a man in a dog collar and a nearly naked nun.

Pictures: Pippa Middleton

The pictures are striking: women in revealing, low-cut period costumes from the 18th-century playacting with men in fancy clothes and spiky leather collars and bracelets.

Buckingham Palace declined to comment, but the racy coverage was likely not well received by Britain's royal family, which has been enjoying a popularity boost since the former Kate Middleton's fairytale wedding to Prince William last year.

Pippa Middleton holds no royal title, but her life has been subject to intense scrutiny since she captured attention at her sister's wedding with a close-fitting maid of honor dress.

Britain's media often characterize her as the party-loving, more vivacious contrast to the elegant and subdued Duchess.

The Daily Mail story - with the headline "Her Royal Hotness and the viscount in a dog collar" - showed Middleton, dressed in an 18th-century style top, posing with other similarly dressed women and a man in a king's costume laughing as one of the women pulled on the dog collar around his neck.

The article said the man was the host, Arthur de Soultrait, a French fashion designer.

The paper ran other photos from the party that featured a woman in scanty lingerie and a nun's headdress dancing with a dwarf.

The story came after photographs in The Sun newspaper Monday that showed Middleton in a convertible, next to a companion who pointed what appeared to be a gun at the photographer.

A spokesman for a French clothing company owned by de Soultrait, who also appeared to be in the car, denied that Middleton's companion brandished a pistol at the paparazzi, saying that the driver was in fact "playing a game" with the photographers with a toy gun.

Paris police say they've received no complaint and are not investigating the incident.