If there were any embarrassing stories or blush-inducing antics from the night, we certainly won't hear about them.
Earlier this week her fiancé opted for a distinctly top-scret, intimate stag night.
And Kate Middleton followed in the footsteps of Prince William, apparently celebrating her last few weeks as a single woman with a discreet party behind closed doors several days ago.
A source close to Kate spoke of the occasion which took place at a friend's home: "She has already had her hen night, but it was certainly very low-key.
"It was done privately. Not all of Kate's friends were there, and she will be catching up with other friends over the coming weeks."
The understated affair seems to set the tone for the life she is to share with William after their nuptials on April 29.
They intend to keep their public and personal lives separate, slipping back under the radar after official appearances to live peacefully, without servants, in their Welsh cottage.
Organised by her sister and maid of honour, Pippa Middleton, the hen party apparently consisted of close friends such as Olivia Beasdale, who shared a flat with the couple at St. Andrews.
Also said to have attended were Alicia Fox-Pitt, a schoolfriend from Malborough and a fellow member of the Sisterhood dragon boat crew, and Rose Astor (pictured right), wife of William's close friend Hugh van Custem.
Astrid Harbord, who was once romantically linked to Harry, also celebrated Kate's upcoming marriage (pictured centre).
However, Prince Harry's former girlfriend, Chelsy Davy, who was thought to be close to Kate, was not amongst the guests.