Kate Middleton's sister, Pippa  is not engaged. The Vanity Fair columnist and her stockbroker boyfriend, Nico Jackson are not tying the knot. 

According to an US Weekly report, the swirling marriage rumors surrounding Prince William's sister-in-law, 29, and her beau, 35, are false.

Several reports have claimed that Prince George's aunt is heading down the aisle after rumors began swirling everywhere. An insider told The Sunday People that the party planner and Dutchess of Cambridge's younger sister was set to wed Jackson.

The Sunday report claimed that the couple were keeping the engagement under wraps to avoid stealing the thunder from Kate Middleton and the new royal baby. 

But a source told US that the couple are not getting married, and are happy with just dating.

The twosome have been an item for only six months. Reportedly, the couple both met and visited Prince George at Kensington Palace right after his July 22 birth together.

Though the party planner has let her older sister have the spotlight, she did make headlines for wearing a skintight Alexander McQueen dress that flaunted her curves during her sister's royal wedding in April 2011. She stole the show as maid of honor in the beautiful frock that showed off her backside.

As far as Pippa Middleton's romantic life before Jackson, she was previously linked to England cricketer, Alex Loudon. The stylish sister also dated university friend, George Percy for a short time in 2012.

Think the couple are secretly engaged or just dating? Tell us in the comments section below!