The Made In Chelsea cast member - who is has quit the show to focus on her marriage and solo ventures - enjoyed a classy and fun-filled hen party on Saturday (17 August) with her pals, including co-stars Binky Felstead and Rosie Fortescue.
Although the celebrations were a low-key affair, Millie gave her fans a glimpse into what she got up to with a few pictures on Instagram.
In one snap, she can be seen flaunting her slim figure in a skintight LBD, which she teamed with a black clutch in the shape of a pair of lips and a novelty pink and silver tiara.
Another picture shows her during a makeover with huge backcombed hair, while a third snap shows her sat beside good friend and model, Charlotte de Carle, as they sipped champagne from rude straws.
The 24-year-old was no doubt spoilt at her celebrations and she was even presented with an array of cute cupcakes, which were decorated with pink L plates and candid photos of herself and Pro Green (real name Stephen Manderson).
Millie wrote beside the yummy picture: "Cupcake heaven #hag."
The star and her rapper fiancé are planning to marry next month in Somerset, but intend to keep their nuptials as private as possible.
Pro Green has previously admitted that he doesn't want to invite the Made In Chelsea cast to the ceremony, but clearly Millie is still close to a few of her co-stars, so we guess we'll have to wait and see who actually makes the final guest list!
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