Lucy Mecklenburgh shows off her perky bum on holiday!

Lucy Mecklenburgh has posted a picture of her tone bum on holiday just after a kickboxing session.

Celebrating her birthday and keeping fit during a fitness retreat on the Spanish island of Ibiza, we loves it Lucy.

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The former TOWIE star shared the snap on Instagram, captioned: "Kickboxing done at @thirtyeightdegreesnorth Now time for a Dip!! (SIC) #ibiza #retreat #fitness #healthybody."

We're not jel one bit.

Lucy later added a shot drinking a healthy green juice, posing in front of a sea view. Again we're not jealous.

"Mmm Green Juice from @babylonbeach Swimsuit @simplybeach Shorts @guess Glasses @gucci #Ibizalife #health #fitness #retreat #38DegreesNorth," she wrote alongside her Insta-shot.

Continuing to keep the healthy-kick in tow, Lucy also shared a couple of healthy beverages she was enjoying too.

Alongside some salmon, the 24-year-old wrote:"Mmmmmm!!! @thirtyeightdegreesnorth @passioncafe #ibiza #health #retreat #salmon #sushimi #juice."

Can we come on a retreat with you Lucy? This looks like hella fun.