Black cab rapist John Worboys strips to a thong and sinks his teeth into a bride’s bottom, performing his routine in front of stunned guests at a wedding.
He performs the turn before embarking on the campaign of terror which saw him rape or sexually assault potentially 100 women in the back his taxi.
The bride and groom spoke of their revulsion at unwittingly hosting the man suspected of being Britain’s worst serial rapist at their big day after learning he will be freed within weeks.
They spoke out following nationwide outcry at his jail release after just eight years.
The bride told us: “It makes me sick to my stomach.”
The clip - taken at a wedding reception in 1991 - shows the rapist biting the bride’s backside, bending her over and making crude jokes about having sex with her in a bike shed.
In the video - captured during the rapist’s previous job as a stripper ‘Terry the Minder’ - shows Worboys trip down to a pink g-string.
Children are among the guests watching the predator pull out a whip and bend the bride over.
Speaking exclusively to the Sunday Mirror 26 years on from her big day, the bride in the video - who does not want to be named - said: ‘It casts a horrendous shadow over that day.
‘It makes me sick to my stomach now, knowing that evil man was not only at my wedding day - but in my living room among my family and friends.
"It’s traumatising, I’m disgusted - as are all our family who recall him being there that day.
‘We all egged him on thinking it was harmless fun, a laugh. If we’d known what he was capable of he would have never set foot in my home.
"That’s my wedding video and it’s tarnished forever. I am horrified that he was at my big day but even more horrified he is now set to be released after serving such a pitiful amount of prison time.
Her husband added: ‘We want everyone to see him for what he is.’
The video sheds a fresh light on the sordid past of one of Britain’s worst serial sex attackers, who was convicted in 2009 of one rape, five sex assaults, one attempted assault and 12 drugging charges.
The bride says her sister invited Worboys who performed under the name ‘Terry the Minder’ to her reception in St Albans, Herts, as a ‘surprise gift’.
In the five-and-a-half minute video, taken on August 17, 1991, a 34-year-old Worboys sporting a blonde mullet style haircut arrived in a crowded room of guests.
Dressed in a suit, he hands the bride a bouquet and began to tell a series of lewd jokes.
Worboys said: ‘You don’t recognise me, do you? I’m sorry, is this a party or something?
"Don’t laugh, me and this girl used to have it away behind the bicycle shed at school.’
Worboys, now 60, worked as a stripper between 1987 and 2000 - and has directed an adult film.
The bride explained: “My sister just thought it would be a laugh. It was at the time - but I’m certainly not laughing now."
Addressing the 60 guests, Worboys joked in the clip about the groom ‘having a bigger willy than what I’ve got’.
He goes on: "When me and [the bride] used to have it away, before she met [the groom], she said ‘Terry’, cos that’s my name, ‘your winkle’s like a Donner kebab [...] it’s all meat and no gravy'."
Laughing to guests about ‘giving one’ to the bride, Worboys jokes how she had begged him to hurt her and how he had "shut her boobs in a wardrobe".
He also makes a racist jibe about a fictional Chinese couple who split - telling: ‘she went back to Peking and he went back to w******g’.
Refering to himself as ‘rather a big boy’, Worboys then began to strip as the guests egged him on.
He then said: "You know that record by Frankie Goes to Hollywood, right, where he says don’t do it when you wanna get to it.
"But what I used to do, right, is get this [whip] and go to whip her and go rar."
He then bites into the bride’s bottom.
The bride recalled: “Knowing what he is capable of, what he did to countless defenceless women, makes me shudder when I watch it. To think I touched him, it makes me sick."
Eighteen years later it emerged in court Worboys picked up women late at night and pretended he had won the lottery before offering them champagne laced with drugs.
Worboys would then sexually assault his victims.
Police eventually discovered a chilling ‘rape kit’ in his black cab - which contained contents including sedatives, mini champagne bottles and gloves.
Worboys got an indeterminate sentence in April 2009, with a minimum term of eight years.
He was convicted of 19 offences against 12 women, but cops fear there could be as many more victims.
Speaking of the moment they found out about Worboys’ sick crimes in 2009, the groom said: "We recognised him instantly. There was no mistaking him. That hairdo, the voice, the name. It came back in an instant.
“Imagine linking someone like that to your wedding day. Knowing he was with your nearest and dearest. I couldn’t believe it, we were in utter shock."
The groom added: "We are all appalled that he will be released and we are desperate to see him back behind bars.
"By sharing this video we hope to shed light on his true colours."