Wearing matching monochrome swimsuits, the ex TOWIE stars looked super stylish as they had fun by a swimming pool on the famous Nevada Strip.
Yoga expert Billi donned a plunging black and white swimsuit with a pair of aviator shades, while Cara rocked a matching bandage bikini and oversized sunnies. Both girls wore their hair down with their long locks styled in curls and looked every inch the glamorous superstars as they partied with Avicii.
Both Billi and Cara headed to Vegas last week with a large group of girl pals. And since arriving in Sin City the girls have wasted no time in making the most of what the notorious holiday destination has to offer.
And by the looks of things, they're having SO much fun!
Along with trips to the casinos and bars, the girls have been living the high roller lifestyle right through the day and into the night. Billi has even taken to Twitter to let us all know just how much she is enjoying her break: "Having the time of my life in Vegas with my girls," she tweeted.
Vegas marks the third trip abroad for the Essex beauty in the last few weeks, as she has already been away with boyfriend Andy Carroll to Dubai and the Maldives.
And now living it up in Vegas with Cara and co, we're pretty sure this jet-setter will never want to come home!