From Ben Leach at Britain's Telegraph:
A couple were arrested after being caught having sexual intercourse on the Queen's lawn outside Windsor Castle.
The pair, in their early thirties, stripped on a private grass bank at the castle, where Her Majesty was in residence.
They were watched by crowds of tourists beneath the castle's Garter Tower, in full view of hotels, pubs and shops over the road.
Several Japanese tourists filmed the couple for up to twenty minutes before they were arrested by armed Royal Protection Squad officers.
The couple, who were described by police as "respectable people with respectable jobs", were said to be "mortified" by their actions.
A police source said they were put in cells overnight to sober up before being cautioned for outraging public decency.
Witness Mark Robinson, 44, told The Sun: "One window from the guardroom opened up and when a soldier saw what was going on he told his mates – and lots of windows opened. "
The couple did not care who was looking and just kept going as if they were in their own bedroom. "They even ignored the Please Keep Off The Grass signs. "
A few soldiers were geeing them on from above and plenty of young people did the same from the roadside. There were camera flashes going off and people videoing."
The couple reportedly stopped after being confronted by two protection squad officers arrived in an unmarked Range Rover, accompanied by a police car.
A Windsor Castle source said: "The Queen was in residence at the time, but her private apartments are at the other end so she would have been blissfully unaware of it."