Ryan Dunn

By DAILY MAIL REPORTER

Whoops! Paris Hilton's black leggings turned sheer under the photographers' flashbulbs during a shopping trip in Los Angeles yesterday

She's been famous since birth, so Paris Hilton should really have got the hang of dressing for photographers now.

But the 29-year-old socialite appeared to have forgotten all her fashion rules yesterday when she stepped out in Los Angeles wearing a pair of black leggings which turned sheer under the glare of hundreds of flashbulbs.

However, the hotel heiress seemed unaware of her fashion faux pas, and merrily loaded hundreds of shopping bags into her car following a shopping trip with mother Kathy and sister Nicky.

Careful, Paris! The hotel heiress didn't realise her fashion faux pas as she bent down to pick something up

The trio, who were dressed for some serious shopping, donning matching shades, leggings and jackets for their day out, were also joined by family friend Brooke Mueller, the estranged wife of actor Charlie Sheen.

And they put in the hard work at Joans on Third in West Hollywood, California, loading themselves up with bags.

Paris tweeted: 'Just shopping with Nicky Hilton, my mom and Brooke. I love shopping with Nicky, she has the best taste!'

Trendy: The socialite looked otherwise relatively fashionable in a black T-shirt, heels and leopard-print hat

A couple of hours later they left the store, weighed down with shopping bags, and just in time for some refreshing lunch.

Busy Paris is currently filming her new reality show.

She tweeted: 'So excited for our new show! Shooting is going fantastic! Hilarious and fun! Loves it'

Here come the Hiltons: Paris, Kathy and Nicky hit the shops in West Hollywood

Retail therapy: The family were joined by Charlie Sheen's estranged ex Brooke Mueller for their trip

But her life isn't all fun - she is also fitting in a spot of community service, and has been spotted removing graffiti as part of her court-ordered work with the Hollywood Beautification Team.

Paris was sentenced to community service after she plead guilty to two misdemeanors - drug possession and obstructing an officer - but avoided jail time.

Instead, she is on probation for a year, must complete a substance abuse program, pay a $2,000 fine, and complete 200 hours of community service.