The former Made In Chelsea star, 24, is currently in California for the second weekend of the Coachella festival and couldn't resist posting a few snaps from her time away with husband Professor Green, 30.
As if flying to Calfornia while sipping champagne in upper class wasn't enough to make us feel a tad envious, the self-confessed 'fashion junkie' flaunted her amazing bod in a variety of bikinis once at the hotel pool.
The good news is that not ALL of her outfits are designer. Her black two-piece is Sofia by Vix, while her panama-style hat is highstreet favourite H&M.
Okay, so the sunglasses are Thierry Lasry but we can't have it all!
During her 'poolside diary', Millie also told us her second bikini - maroon, strapless and teeny - was Varley London, while her hat is from Etro. Now we can properly stalk Millie's flawless style!
The loved-up star also posted a photo of her husband Pro Green, with the joke message: "#maninshortswithmaninshortson @professorgreen."
After splashing in the pool and topping up her tan, Millie returned to their room to dress up for the music festival - and nailed festival chic.
Describing herself as "Coachella ready", she again shared her outfit with her Instagram followers, natch! As well as staple festival wear including denim shorts, floaty white blouse and cowboy boots, Millie channeled her inner hippy in a flowered crown.
On the way to the music weekender, a happy Millie shared a selfie of herself kissing Professor Green, real name Stephen Manderson - and his flowery shirt definitely complements her outfit.
Can these two do no wrong?
Do you like Millie's style? Tell us in the comment box below!