While the cat's away...! Former Made In Chelsea lothario Spencer Matthews 'spends an entire afternoon and night with a mystery blonde while girlfriend Vogue Williams is at home in Ireland'

He's meant to be smitten with model Vogue Williams after they started a romance while taking part on Channel 4's The Jump.

But sources have claimed Spencer Matthews 'has some explaining to do' after he was witnessed enjoying an all-day drinking session with a mysterious blonde, after which they went back to his home in London in the early hours.

Vogue was no-where to be seen, as she has been back home in Ireland, without her boyfriend Spencer.

Scroll down for video

While the cat's away...! Former Made In Chelsea lothario Spencer Matthews allegedly spent an entire afternoon and night with a mystery blonde while girlfriend Vogue Williams was celebrating Easter in Ireland

While the cat's away...! Former Made In Chelsea lothario Spencer Matthews allegedly spent an entire afternoon and night with a mystery blonde while girlfriend Vogue Williams was celebrating Easter in Ireland

Surely, he wouldn't! Spencer's meant to be smitten with model Vogue Williams after they started a romance while taking part on Channel 4's The Jump

Surely, he wouldn't! Spencer's meant to be smitten with model Vogue Williams after they started a romance while taking part on Channel 4's The Jump

But the ex-Made In Chelsea star still was sure to have a fun weekend in London as he enjoyed being the centre of attention on an all-day social.

Spending the day and evening in West London, Spencer, 27, was snapped looking lovingly at the unknown blonde, sure to share a laugh with her and pose for selfies at the table they drank at.

They weren't alone, but the pair ended up back at his flat at 2am, according to reports - only for her to creep out the next morning.

The group reportedly spent 10 hours drinking together - with a source telling The Sun that 'he will have some explaining to do'.

All a-titter: Spending the day and evening in West London, Spencer, 27, was snapped looking lovingly at the unknown blonde, sure to share a laugh with her and pose for selfies at the table they drank at

All a-titter: Spending the day and evening in West London, Spencer, 27, was snapped looking lovingly at the unknown blonde, sure to share a laugh with her and pose for selfies at the table they drank at

Cheers: The group reportedly spent 10 hours drinking together - with a source telling The Sun that 'he will have some explaining to do'

Cheers: The group reportedly spent 10 hours drinking together - with a source telling The Sun that 'he will have some explaining to do'

Lapping it up: The ex-Made In Chelsea star was sure to have a fun weekend in London as he enjoyed being the centre of attention on an all-day social

Lapping it up: The ex-Made In Chelsea star was sure to have a fun weekend in London as he enjoyed being the centre of attention on an all-day social

An onlooker claimed: 'The blonde clearly dominated Spencer’s attention. They seemed very flirty and tactile with each other. And as the night went on they struck up their own private conversation away from the others.

The eagle-eyed sleuth added: 'When she briefly broke off from their chat to look at her mobile phone, he carried on gazing at her and grinning. He seemed pretty smitten with her.'

This aspiring Miss Marple didn't stop there. They seemingly made a day out of tracking Spencer's exact movements, claiming that he spent six hours enjoying drinks outside in the sun, joined briefly by fellow ex-MIC star Millie Mackintosh at one point.

Fixated: An onlooker claimed - 'The blonde clearly dominated Spencer’s attention. They seemed very flirty and tactile with each other. And as the night went on they struck up their own private conversation away from the others'

Fixated: An onlooker claimed - 'The blonde clearly dominated Spencer’s attention. They seemed very flirty and tactile with each other. And as the night went on they struck up their own private conversation away from the others'

Goodness: The eagle-eyed sleuth added - 'When she briefly broke off from their chat to look at her mobile phone, he carried on gazing at her and grinning. He seemed pretty smitten with her'

Goodness: The eagle-eyed sleuth added - 'When she briefly broke off from their chat to look at her mobile phone, he carried on gazing at her and grinning. He seemed pretty smitten with her'

Here comes the bride: This will surely rock the boat with Vogue - but also with Spencer's family, who are thought to already be on tenterhooks about Spencer's brother James' upcoming wedding to Pippa Middleton next month

Here comes the bride: This will surely rock the boat with Vogue - but also with Spencer's family, who are thought to already be on tenterhooks about Spencer's brother James' upcoming wedding to Pippa Middleton next month

Ring master: Spencer was seen having a right old time of it with a revolving string of pals; however, the blonde remained glued to the same seat throughout

Ring master: Spencer was seen having a right old time of it with a revolving string of pals; however, the blonde remained glued to the same seat throughout

The group grabbed a cab to a pal's flat, stopping to buy some more drinks en route, where they stayed until past 1AM.

Spencer and the blonde taxied back to his flat where The Sun's amateur sleuth evidently made a night of it and waited for the lights to go out - which apparently happened at 4.30AM.

This will surely rock the boat with Vogue - but also with Spencer's family, who are thought to already be on tenterhooks about Spencer's brother James' upcoming wedding to Pippa Middleton next month.

It transpires that tensions are high amoungst the Matthews clan, as Spencer is to be the best man, royals will be in attendance, and James and his parents are thought to be worried about the notorious Chelsea party boy going a little too wild at the classy shin dig.

Commanding the crowd: The identity-less blonde seemed to be loving Spenny's rogue banter

Commanding the crowd: The identity-less blonde seemed to be loving Spenny's rogue banter

Big day approaching: It transpires that tensions are high amoungst the Matthews clan, as Spencer is to be the best man, royals will be in attendance, and James and his parents are thought to be worried about the notorious Chelsea party boy going a little too wild at the classy shin dig

Big day approaching: It transpires that tensions are high amoungst the Matthews clan, as Spencer is to be the best man, royals will be in attendance, and James and his parents are thought to be worried about the notorious Chelsea party boy going a little too wild at the classy shin dig

In good company: Prince William and the Duchess of Cambridge will be there, along with their children Prince George and Princess Charlotte, Pippa's nephew and neice (and James' future nephew and niece)

In good company: Prince William and the Duchess of Cambridge will be there, along with their children Prince George and Princess Charlotte, Pippa's nephew and neice (and James' future nephew and niece)

Especially since the reception is being held at the Middletons’ house.

Prince William and the Duchess of Cambridge will be there, along with their children Prince George and Princess Charlotte, Pippa's nephew and neice (and James' future nephew and niece).

Given the regal links, it's thought Spencer has been asked to keep out of the limelight over the coming weeks, leading up to the wedding. 

There are also reports that Spencer's other half Vogue is 'banned' from Pippa's wedding amid fears she could 'outshine' the beautiful bride. 

The socialite has imposed a 'no ring, no bring' policy to her wedding to her hedge fund manager beau, making it unlikely that Prince Harry can bring girlfriend Meghan Markle, 35, to the big day either. 

'No ring, no bring': There are also reports that Spencer's other half Vogue is 'banned' from Pippa's wedding amid fears she could 'outshine' the beautiful bride

'No ring, no bring': There are also reports that Spencer's other half Vogue is 'banned' from Pippa's wedding amid fears she could 'outshine' the beautiful bride

A wedding insider told The Sun: 'Pippa’s view is that Vogue’s relationship with Spencer is still very new. It wouldn’t be appropriate for her to be there after just a few months of dating.

'But some people in the circle are pretty shocked because this is her future brother-in-law who’s going to end up attending on his own. It’s certainly raised eyebrows.'

The source also added: 'It’s clear Pippa doesn’t want to be outshone by any TV babes on her big day.'

Even if Vogue had an invitation to the big day, the source explained that the Irish beauty wouldn't have been able to attend because she's 'working on a job that's been booked in for ages.' 

Vogue and Spencer first laid eyes on each other while competing for Channel 4's The Jump in January - and she sang his praises after he supported her following her knee injury which forced her to pull out of the show.

Model behaviour: Even if Vogue had an invitation to the big day, the source explained that the Irish beauty wouldn't have been able to attend because she's 'working on a job that's been booked in for ages.'

Model behaviour: Even if Vogue had an invitation to the big day, the source explained that the Irish beauty wouldn't have been able to attend because she's 'working on a job that's been booked in for ages.'

Lovebirds: Vogue and Spencer first laid eyes on each other while competing for Channel 4's The Jump in January - and she sang his praises after he supported her following her knee injury which forced her to pull out of the show

Lovebirds: Vogue and Spencer first laid eyes on each other while competing for Channel 4's The Jump in January - and she sang his praises after he supported her following her knee injury which forced her to pull out of the show

The comments below have not been moderated.

The views expressed in the contents above are those of our users and do not necessarily reflect the views of MailOnline.

We are no longer accepting comments on this article.