Kim Kardashian new photos with her old friend Serena Williams

Her second pregnancy has so far led to little change in her wardrobe.

And Kim Kardashian chose another revealing look on Friday before bumping into her old friend Serena Williams who couldn’t resist touching the star’s growing belly.

The bootylicious ladies embraced on the street outside Harrods and Kim placed her hands on her hips as the World Number One tennis player rubbed her baby bump.

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The Keeping Up With the Kardashians star, 34, who is expecting a baby boy later this year, dressed for the London heat in her plunging outfit. She showed plenty of cleavage in a low-cut black top and ruffled skirt.

In stark contrast Serena embraced the sporty look in a white and purple Nike tank paired with skin-tight grey leggings and trainers just days before the start of Wimbledon.

Kim chose the revealing outfit amid rumours she’ll head to Glastonbury today ahead of husband Kanye West’s headline slot on Saturday night.

The halter-neck number showed off some extreme cleavage while the beauty’s trim waist was also accentuated thanks to her flattering long ruffled skirt from Givenchy.

Kim accessorised with a pair of perspex heels, a favourite style of the fashion lover.

Kim kept the rest of her look simple with an elegant gold necklace and her favourite dark shades on as she headed out into the city sunshine.

The star left her dark locks loose and swept back from her face and accentuated her features with a nude lip colour.

A frill detail across her stomach and her outfit’s asymmetrical cut meant any sign of Kim’s baby bump was well hidden.

She was spotted shopping at luxury lingerie boutique Rigby & Peller.

Staff told MailOnline: ‘She was an exceptionally nice customer, lovely and down to earth and welcome again in the boutique at any time!’

The star was accompanied by a burly bodyguard as she made her way through the crowds gathered outside her London base and into a waiting car.

There was no sign of husband Kanye, with the rapper no doubt busy preparing for his anticipated headline slot on Glastonbury’s Pyramid stage on Saturday night.

Kim’s stop in London has led to plenty of speculation she’ll be heading down to Somerset to watch her husband, who’s Glastonbury booking has proved somewhat controversial.

Pregnancy certainly isn’t slowing Kim down for after spending Wednesday partying on the MailOnline yacht in Cannes, she hit the town in London on Thursday.

Kim, 34, reunited with Kanye in the English capital after he attended Men’s Fashion Week in Paris while she was at the Cannes Lions Advertising Festival with her mother Kris Jenner and sister Kylie.

Kardashian dressed in an artfully ripped T-shirt for her night out at Hakkasaan with Kanye, with the garment showing off her ample cleavage again.

A pencil skirt highlighted Kim’s famous derriere while a belt drew attention to her still narrow waist.

Kim completed her outfit with a pair of white strappy sandals and wore her long dark hair loose around her shoulders.

Kanye appeared to be taking fashion tips from his wife, also opting for a plunging T-shirt, which he wore with ripped white jeans and a cardigan.

While Kim arrived in London on Thursday morning via plane, Kanye took the Eurostar from Paris later in the day before making his way to their hotel for a reunion with his wife.

Kim is expecting her second baby with Kanye but admitted she still hasn’t decided how to introduce their two-year-old daughter North to her new sibling.

The pregnant star, who was one of the VIP guests at the MailOnline yacht party in Cannes, said she and her rapper husband read books to North that include stories about being a big sister.

Kim explained to MailOnline: ‘I don’t know if North really understands she’s getting a baby brother yet.

‘We read books at night with stories about big sisters, and baby brothers, families.

‘I’m sure she’ll come to the hospital and meet him, that’s what Kourtney did with her kids so I’ll take advice from her.’

Kim also revealed she plans to wear ‘simple’ maternity wear this time round.

She said: ‘At this stage, I’m just trying to fit into the things that still fit me

I do think tighter clothes look better and more slimming, and I don’t care how hot it is, I’m going to wear thin coats all summer to conceal my big arms.

‘I’m going to have a strategy of just really simple this time.’

Kim also revealed she has been suffering with morning sickness during her second pregnancy, and also spoken about her struggles to conceive with Kanye after a difficult delivery with North.

She said: ‘It’s definitely a different pregnancy. I really wanted to be pregnant, and it’s the anticipation of trying.

‘I feel that this is really a miracle because I didn’t think it would happen for me because I had a tough delivery that created some complications.

‘So I’m just really grateful to be pregnant, and we’re just really happy that so far everything is really healthy, and we’re just really excited.’

And she didn’t rule out having more children.

‘I’ve always said if I had a boy, I would be done with a boy and a girl.

‘But this pregnancy has been a little bit easier, but I won’t really know until later on if I can have another one, it depends on my delivery, so hopefully I’ll be able to have another one – I wouldn’t mind it.’

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