An embarrassed teenager whose trousers fell down as he tried to take a selfie with Nick Clegg says his friends will 'never let him live it down'.

William Carrie, 17, asked the Deputy Prime Minister for a photograph outside Solihull College this afternoon.

But as Mr Clegg leaned in on for the snap, William's jeans fell to his knees, leaving him red-faced.

Speaking to MailOnline this evening, the drama student, from Solihull, insisted the wardrobe malfunction was a 'complete accident'.

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William Carrie's trousers fell down as he tried to take a selfie with Nick Clegg and says his friends will 'never let him live it down'

Trousers down: This teenager's trousers fell down as he went to take a selfie with Nick Clegg

William said he was going to the college to meet a friend when he bumped into Mr Clegg, not realising he was visiting.

'I went over to take a picture as I like to meet celebrities, but as I put my hand up to take a selfie, my trousers fell down,' the sixth former said.

'They're quite loose jeans and I've had them for a few years now. I'll have to get some new ones.

'I was mortified because it was extremely embarrassing. All my mates were there laughing and there were so many cameras.'

Fortunately the teenager's modesty was protected by his black boxer shorts.

Waving William away and shaking his head before the boy had time to take the selfie, Mr Clegg quickly boarded his campaign bus.

William, who says he does not have a favourite political party and will be too young to vote on Thursday, added: 'My friends have been taking the mick all day. I'm never going to live it down.

The Deputy Prime Minister was on the campaign trail in the West Midlands when the boy approached him, asking for a photograph

Wardrobe malfunction: But as the teenager went to take the picture, his jeans fell to his knees, leaving him red-faced

'It's all banter I guess and it was a complete accident, I would never do something like that on purpose.

'I would like to apologise to Nick Clegg personally. I just wanted to take a picture with him and I think he might have been angry.'

However Mr Clegg seemed to see the funny side, tweeting later: 'Some people may not have been heeding my warnings about the need to tighten our belts.'

William's sixth form friends also ridiculed him, with Ross Lough tweeting: 'As if will dropped his trousers in front of Nick Clegg'.

Ross later told MailOnline: 'Everyone's talking about it. He said it was an accident. It's absolutely hilarious.

'He is a bit of a strange one. He's always ending up in situations like these. It's odd because he's quite quiet but then he comes out with things like this.'