The Issa catwalk show is usually quite a refined affair - so it must have been a relief for organisers that Peaches Geldof saved her latest antics for the taxi journey, and not the event itself.

The sometime model and party girl posted a picture of herself on Twitter, with her dress pulled up to a dangerously indecent height.

The pose, which exposed the 20-year-old's heavily tattooed thigh, seemed at odds with usual celebrity efforts to avoid photographers capturing them at such angles.

Indecent: Peaches Geldof exposes her heavily tattooed thigh in a picture taken en route to the Issa catwalk show at London Fashion Week

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Peaches tweeted: It's freezing, but I'm braving the cold for the Issa show later...'

Indeed, Peaches even seemed to take some pride in her overexposure, captioning the photograph the words: 'It's freezing, but I'm braving the cold for the Issa show later in a red Issa dress... probs gonna get a cold!!'

Demure: Peaches' Issa dress actually fell to just above the knee

By contrast, when pictured later at the show, the red strapless dress looked rather demure, hitting just above the knee.

The daughter of former Boom Town Rat Sir Bob Geldof sat front-row at the high-brow event, which was also attended by Princess Beatrice, Alexandra Burke, Jodie Kidd and Pearl Lowe.

It was one of a string of events she has attended as part of London Fashion Week.

Yesterday alone, she appeared to have as many outfit changes as the models, when she wore a different outfit to each show she attended.

And each ensemble was more revealing that the last, with thigh-skimming black dresses at Pringle and Pam Hogg, and sheer cut-out panels at Jaeger.

Her fellow fashionistas, meanwhile, were rather more sensibly dressed for the shows, teaming their frocks with everything from blazer jackets to fur coats.

Peaches, who turns 21 next month, has previously designed her own collection for designer label PPQ and online retailer Very.

Her younger sister Pixie, 19, has been equally visible this week, although with a role on the catwalk at Vivienne Westwood Red Label, Peaches is playing a larger role in the London Fashion Week proceedings this season.

Last week Miss Geldof was spotted in a passionate embrace with her male friend Eamon Kelly at New York Fashion Week.

Later she denied that Kelly was anything more than a friend.