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A couple were having sex while another man watched, floorboards had been ripped up and drugs were being passed around when Christina McQuillan arrived at her south-west London flat after neighbours called her. The shocked 31-year-old said she was punched by a man in a hoodie as she tried to break up the out-of-control party at her flat which she let to a woman through popular renting site Airbnb - who said she just wanted to sleep there for one night.

It was horrific Christina McQuillan

Magazine designer Ms McQuillan, who charged £128 for the night's stay, said: "It was horrific. Me and my partner got to the property and there were hundreds of people on the streets. You could smell cannabis a mile off. "We entered the property and we told her to shut it down immediately. "This girl just laughed and said 'no, I'm holding a party'. "My partner decided to cut the power upstairs and in the bedroom they were having a mass orgy."

Ms McQuillan called the police as she made her way to the flat, which also had rubbish strewn around it, but was initially told they would have to break up the party themselves as it was not a criminal matter. But after the man attacked her she managed to kick him out and officers were sent to her home. She added: "People were smoking dope and there were other drugs, drinking. The music was horrifically loud with proper decks. "There was professional music equipment pumping out really loud."

Getty The woman's flat was in wealthy Putney

Airbnb has apologised and offered to pay for any damages to the couple who often rent out rooms through the online service. A company spokesman said: "We have zero tolerance for this kind of behaviour and have removed this guest from our platform. We are also in contact with the host and are providing them with our full support."

Getty Airbnb co-founder Nathan Blecharczyk