Petra Ecclestone fuels speculation she is pregnant as she shows off small tummy bulge in a tight dress

'She's really happy at the moment': Petra Ecclestone fuels speculation she is expecting her first child as she shows off rounded stomach in tight white top

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UPDATED:

01:07 GMT, 31 October 2012

She may have been going to great lengths to hide her stomach as she stepped out last week, but Petra Ecclestone seemed more than happy to flaunt her rounded stomach on Tuesday.

Adding to mounting speculation that she is expecting her first child with husband James Stunt, the 23-year-old socialite didn't seem to care who saw as she paraded her slightly protruding tummy for all to see while on a shopping trip in Hollywood, California.

With black leggings accentuating her tum, the British Formula One heiress had clearly abandoned her previous tactics of hiding her suspected baby bump behind her bag.

Something to tell us Petra Ecclestone looked as though she was sporting a slight baby bump as she headed out on a shopping trip on Tuesday afternoon

Something to tell us Petra Ecclestone looked as though she was sporting a slight baby bump as she headed out on a shopping trip on Tuesday afternoon

While a representative for Petra told MailOnline they were 'unable to comment at this time', her elder sister Tamara Ecclestone hinted recently the blonde star had a little more than just the California sunshine to be smiling about at present.

Speaking in an exclusive interview
with MailOnline, she said: 'I don't want to speak for them, but they are
very happy at the moment.

'She loves the way of life over there and she definitely loves the weather! She’s really happy.

Shopping for baby clothes Petra's tight-fitting white top and black leggings seemed to accentuate her slightly protruding tum

Shopping for baby clothes Petra's tight-fitting white top and black leggings seemed to accentuate her slightly protruding tum

'Very happy': Petra looked as though she had more to smile about that just the California sunshine

'Very happy': Petra looked as though she had more to smile about that just the California sunshine

'I
look at her and James and think it’s really nice to believe in happy
ever after. They’re so good for each other and they bring out the
absolute best in each other.'

This was the second day in a row that Petra was spotted with a slightly bulging tummy.

On Monday night, the 23-year-old showed off her seemingly new curves as she left Spago restaurant, in Beverly Hills, California.

Petra seemed to be making extra effort to showcase her suspected baby bump as she slipped into a very tight dress, which she teamed with a pair of stylish boots.

Something to hide Petra Ecclestone appeared to have a small baby bump as she left Spago restuarnt, in Beverly Hills, on Monday night

Something to hide Petra Ecclestone appeared to have a small baby bump as she left Spago restuarnt, in Beverly Hills, on Monday night

Pitter patter of tiny feet: Petra was in a good mood as she left the restaurant with a large group of friends

Pitter patter of tiny feet: Petra was in a good mood as she left the restaurant with a large group of friends

Nice work: Petra looked her normal stylish self as she teamed the tight dress with a pair of trendy boots

Nice work: Petra looked her normal stylish self as she teamed the tight dress with a pair of trendy boots

Nice work: Petra looked her normal stylish self as she teamed the tight dress with a pair of trendy boots

After leaving the restaurant, James and Petra jumped into their Lamborghini Aventador as he drove the couple home.

The pair married in August 2011 at Odescalchi Castle, near Rome, Italy, with the nuptials reportedly costing 12 million.

In July 2011, they moved to Los Angeles, purchasing Aaron and Candy Spelling's palatial 123-room Beverly Hills mansion for a staggering $85 million.

Happy days: Petra's sister Tamara said that the couple are very much enjoying their life in Los Angeles

Happy days: Petra's sister Tamara said that the couple are very much enjoying their life in Los Angeles

Exchange and mart: Petra and James will need to get a more family friendly vehicle if they are expecting their first child

Exchange and mart: Petra and James will need to get a more family friendly vehicle if they are expecting their first child

Keeping it hidden: Petra Ecclestone seemed to be hiding her stomach behind her clutch bag as she stepped out for dinner with her husband on Saturday night

Keeping it hidden: Petra seemed to be hiding her stomach behind her clutch bag as she stepped out for dinner with her husband on Saturday night