James Matthews’ best man Justin Johannson gave an incredibly awkward speech at the Middleton wedding

ON THE surface, Pippa and James Matthews’ wedding seemed like the poshest event of the year but behind closed doors, the speeches didn’t hold back.

PIPPA Middleton’s wedding bash turned awkward after the best man made numerous sexual jokes — including one about the groom going to Bangor for two weeks.

Justin Johannsen left around 300 posh guests, including Pippa’s sister Kate and Prince William — squirming at his racy routine, The Sun reports.

One joke suggested groom James Matthews’ TV star brother Spencer had given clues over their honeymoon.

Johannson went on: “With the wedding shrouded in secrecy, I would like to reveal and wish the bride and groom a wonderful honeymoon in North Wales.

“At least that’s where I presume they’re going, since I overheard Spencer saying that James will be, after the wedding, going to Bangor for two weeks. Enjoy the Welsh coast, guys.”

Spencer Matthews, right, became part of Johannsen’s best man speech. Picture: Justin Tallis

James, 41, and Pippa, 33, actually fly off today for a week in a $A5,200-a-night resort on the French Polynesian isle Tetiaroa.

Another joke involved Pippa and her new husband’s pet dog Rafa.

The best man said: “Now, to the love of James’s life. Beautiful, energetic, loyal, soft mouth, comes on command, great behind — that’s enough about James’ spaniel Rafa.”

However, the quip fell flat and the crowd at the Middleton’s $A10.3 million mansion in Bucklebury, Berkshire, looked on in stony silence.

One source told The Sun: “It was a bit full-on for the crowd we had there. Thankfully, some of the older ones didn’t know what he meant.”

The best man, who has known James for ten years, also took the mickey out of his friend’s dancing skills as he read out a message from the dance tutors who had trained him for the big day.

It said: “We really enjoyed seeing you and how you mastered interpretative dance.

“Good luck with the first dance. Don’t forget the buttock-clenching on the star jump.”

James Matthews and Pippa Middleton wed on Saturday. Picture: Kirsty Wigglesworth

The reception began at 8pm, with most guests having to provide photos and passwords for security clearance before arrival.

They were herded through a village hall to be checked by security officers and to be handed a pass to the party.

Royal protection officers and armed police patrolled the estate perimeter and guarded entrances to the venue all night.

Meanwhile, a Spitfire performed a spectacular fly-past.

Inside, tennis ace Roger Federer, 35, wowed the guests by joining in a Middletons vs. Matthews family ping-pong tournament.

Dinner came at around 9pm, with speeches two hours later. After the last one at midnight, Justin and James performed a choreographed interpretative dance with star jumps, replacing the traditional newlyweds’ first dance.

And their moves went down far better than some of Justin’s jokes, drawing wolf-whistles, laughter and applause.

Tennis star Roger Federer played ping-pong inside the reception. Picture: Justin Tallis

Revellers then partied along to music and a live band until 4am.

Earlier in the day, they had enjoyed a far more sedate champagne reception at nearby Englefield House.

Spencer, 27, and Pippa’s brother James Middleton, 30, gave speeches while guests dined on 20 different types of canape, including small portions of haggis, king prawns and steak and chips as a jazz band played.

The bride’s dad Michael, 67, spoke of his pride as he bemoaned losing Pippa and sister Kate — but said they had gone to great husbands.

Yesterday morning, a tired-looking Spencer — barred from taking along TV star girlfriend Vogue Williams, 31 — was seen clutching a can of beer in the sun at his hotel before he set off home.

He said: “For now, we’ll all just enjoy it. I made a speech yesterday. As far as I’m aware it went fine.”

Pippa Middleton kisses her new husband James Matthews, following their wedding ceremony at St Mark's Church. Picture: Justin Tallis

This article originally appeared on The Sun and has been republished here with permission.

Originally published as James Matthews’ best man Justin Johannson gave an incredibly awkward speech at the Middleton wedding