Image Source: Getty / Sean Gallup [1]

Ah, William and Kate's royal wedding. We remember each detail of the big day [2] as if it were yesterday, not almost seven years ago. Just to put that into perspective, let's discuss Margarita Armstrong-Jones. The daughter of the Earl and Countess of Snowdon (and granddaughter of Princess Margaret) played bridesmaid on the big day, sitting next to to maid of honour Pippa Middleton and posing for pictures in a white dress, ballet pumps, and flower crown. Adorable, right?

Image Source: Getty / Pascal Le Segretain [3]

Fast forward to December 2017, and 15-year-old Margarita steps out with her father David Armstrong-Jones, mother Serena Armstrong-Jones, and brother Charles Armstrong-Jones, looking almost unrecognisable. Yeah, she's a full-blown teenager now!

The family foursome were out to attend Alexander Dundas's 18th birthday party hosted by Lord and Lady Dundas, naturally.

Image Source: Getty / David M. Benett [4]

Here's another shot to really rub it in.

Image Source: Getty / David M. Benett [5]

Reaching for the antiageing mask yet?