Separated at birth: Can you tell the difference between Kelly Osbourne's boyfriend and Lindsay Lohan's lesbian lover?

But now it seems that Hollywood partygirls Kelly Osbourne and Lindsay Lohan share similar tastes in another area.

Kelly, 23, stepped out in London with her chisel-jawed boyfriend, BMX rider, Luke Worrell.

And in Los Angeles, Lindsay Lohan enjoyed a romantic meal with her lesbian lover, DJ Samantha Ronson.

But on close inspection both Worrell and the androgynous Ronson share more than a passing resemblance to one another.

Lookey-likey: Kelly Osbourne and boyfriend Luke Worrell who looks remarkably like Lindsay Lohan's  girlfriend Samantha Ronson

With both sporting peroxide blonde locks and trilby hats, despite the difference in gender, the pair appear to have been separated at birth.

DJ Ronson stepped out with gal pal Lindsay in Hollywood last night to dine at restaurant Dan Tana.

But clearly she favours a dressed down look as she was seen leaving their dinner a deux in her tough-looking leather jacket, jeans and T-shirt.

Separated at birth: Luke's peroxide blonde locks and trilby looks very similar to DJ Samantha's androgynous looks

Meanwhile despite Kelly recently proclaiming her wild partying days are over, she and Luke were seen leaving club Bungalow 8 last night.

In an interview with Closer, the 24-year-old star said: "The social scene has finished for me. I'm not falling out of clubs every night like lots of celebs my age - I wouldn't be a functional human being if I was.

"I was going out a lot, I was drinking a lot and it wasn't attractive."

Secret lovers: Lindsay and Samantha run the paparazzi gauntlet

Speaking about her boyfriend, Luke, she said: 'I've known Luke for a year and we've just grown into being a couple. It's nice, new and exciting.

'But we're not a celeb couple... We're normal - we stay at home watching TV.

'I hate to say it but I think I've grown up. I really feel like I've got my act together over the last year. I've got loads of work on, I'm not partying and I've met a man I adore.'

Meanwhile Lindsay also appears to be turning over a new leaf.

A source said to the New York Post: 'She's showing up early for call time , she knows her lines and her co-workers actually like her.

'She's a total pro now'.

Friends attribute her new attituude to the 'calming effect' of girlfriend Samantha.