Pippa Middleton and boyfriend Nico Jackson attend the Sugarplum Ball at One Mayfair on Nov. 20, 2013 in London, England. Credit: Gareth Cattermole/Getty Images

Young, beautiful, and in love! Lately her baby nephew Prince George has been making the headlines, but on Nov. 20, Pippa Middleton stole the show all over again while out with boyfriend Nico Jackson to attend the Sugarplum Ball in London. 


The gorgeous couple stunned with their chic formal wear, with Jackson wearing a velvet black blazer and bow tie. Middleton wore a floor-length brown gown with sheer black fabric over top and detailed embellishments. 

Kate Middleton's younger sister, 30 -- perhaps the most famous bridesmaid ever -- wore her hair swept up with giant silver earrings and a sequin-covered black coat over top. 

Middleton and Jackson have been dating for eight months now, and are frequently spotted out together. The 35-year-old stockbroker was rumored to be engaged to Middleton, but a source told Us Weekly in September that these rumors were not true.

Middleton's last formal appearance was at the Oct. 23 christening of Prince George, where she continued to make headlines for her fashion-forward approach in a cream-colored coat and lace "warm, blush oyster" hued shift dress underneath.