Skinny dip! Millie Mackintosh is a natural beauty as she goes topless aboard a yacht in Ibiza ahead of Riccardo Tisci's big bash

She was amongst the creme de la creme of the fashion world who were invited to celebrate Givenchy designer Riccardo Tisci's birthday in Ibiza on Friday.

And in preparation for the A-list party Millie Mackintosh enjoyed a fun day out aboard a yacht surrounded by friends.

Making the most of the beautiful scenery, as well as the gorgeous weather, the uber fit star stripped down to just her bikini bottoms. Scroll down for more pics

When things got too hot the former Made In Chelsea star decided to take a dip and to make sure it was a moment to remember, she asked her pals to document it for her.

Standing on the edge of the boat wearing just a pair of bottoms Millie, who is married to Professor Green, looked excited.

And when it came to time to jump the athletic star showed off her sporting prowess - which was documented in a fun snap she uploaded to Instagram.

With her back to the camera she can be seen jumping into the gorgeous blue water, revealing the tattoo of a butterfly on her lower back and stars on her shoulder in the process.

She captioned the image, which once again gave fans more than a glimpse of her figure:  ‘My favourite place #formentera.’

Millie hasn’t just been sunbathing and swimming, she’s also been enjoying Ibiza’s well-known party scene.

Taking to Twitter on Sunday morning the natural beauty wrote: 'Eat sleep rave repeat.'

It has without a doubt been an exciting few days for Millie, who attended the now famous Riccardo Tisci party.

Millie and hubby Professor Green mingled with the likes of Kim Kardashian, Kanye West, Justin Bieber and Kate Moss to name a few.

Helping the designer celebrate his fortieth, she wore a stunning black gown which was in keeping with the dress code.

The gorgeous dress featured a plunging neckline, as well as a sexy thigh high split, which meant she gave some of the bigger names there a run for their money.

During the evening Millie and her pals jumped into the photo booth and an excited Millie tweeted that she had met her idol, who appeared in one of the pics.

She wrote: 'I met my fashion idol @anna_dello_russo'. Anna Dello Russo is the editor-at-large and creative consultant for Vogue Japan.

Millie recently opened up about her figure in an interview with Women’s Health, saying: ‘I get comments on Twitter or in interviews with people asking, ‘How do you deal with the fact people think you’re too thin?’ I’m not too thin – I’m slim. I go to the gym to try to build muscle. I really try!’

She revealed that she also relies on the support of her musician husband Professor Green to achieve her Body For Life.

‘My husband Steven and I sometimes run or cycle together. But he’s also good at reminding me I need to rest. I don’t want to be skinny and I don’t want a six-pack – I just want health… and some definition!’, she shared.

DailyMail