A woman accused of indulging in a sex act during a crowded BBC Radio 2 concert in Hyde Park said that she was “tipsy and merry” at the time but that she did nothing wrong.
Lisanne Beck, 47, told the Old Bailey that on a scale of one-to-ten of drunkenness she was probably about a five saying “I was not extremely drunk, I was happy.”
She insists the incident, which shocked onlookers complained was a lewd act, was just her trying to help her boyfriend Simon Murphy, 48, to the toilet.
Ms Beck told the jury: “I shook him because I wanted to wake him up and to try and assist him to the toilet.
“He had not been to the toilet and I knew that he gets discomfort in his stomach because of a medical condition – IBS (irritable bowel syndrome).”
Music lovers complained after seeing Beck and Murphy together during a set by Paloma Faith in September last year.
The couple were filmed on a mobile phone by one concert-goer who said he was “shocked” by what he saw, the jury has heard.
An off-duty policeman and children were among the nearby members of the public who spotted the incident and an adult “shielded” a young girl from it, the court has heard.
The couple had each drunk about three or four cans of cider before arriving at the venue. Beck said she also had drunk from a pre-mixed bottle of vodka and cola. “I was tipsy and merry. I was not really drunk,” she said.
Murphy seemed normal and “ just happy” when they were at the event, Beck claimed.
She said that she could not move Murphy, who was lying on the ground, because he was “dead weight” and denies that anything sexual happened.
The next thing she recalls was security, who had been alerted by complaints about her behaviour, coming to throw the couple out of the event.
Beck, a hospitality waitress, and Murphy, a gardener, both of Swansea, deny a charge of outraging public decency.
They have pleaded not guilty to behaving indecently by engaging in sexual activity including oral sex.
The alleged incident happened after Beck came back from the toilets and Murphy was on the ground.
Beck said that to have sex in a busy park would be a “ridiculous thing”.
She told the jury: “It is not something I would ever do in my life. I do not need to do that. I have no desire to do that as a mature person.
“I am not a crazy teenager in a first relationship. We are a mature couple and are not interested in doing anything as outrageous like that.”
She flatly denied pleasuring Murphy, saying: “ I am not lying. I did not have sex in the park.”
The hearing was adjourned until tomorrow at 10am.