AN Oxford girl told a court how the son of the Earl of Mansfield befriended her before raping her as she slept.

The teenager told jurors she suddenly fell asleep after drinking a glass of Ribena at The Honourable James Murray’s flat, and when she woke, her trousers were around her knees.

The 42-year-old heir admitted he and the girl had sex on an inflatable bed and that his condom split, the court heard.

The pair became friends when the teenager, then 16, began truanting from her secondary school and hanging around a shop near Murray’s flat in Oxford.

Despite his father having an estimated fortune of £60m and growing up in historic Scone Palace, Murray was working as a computer engineer in Oxford.

After hearing friends tease the girl about failing her exams he approached her and told her he had been in a similar position but still had a job.

The jury heard that the girl, who cannot be named for legal reasons, stayed at Murray’s flat, on occasions sleeping on the airbed in his spare room.

The court was told that she went to police after the alleged rape in June 2010 when Murray bombarded her with text messages about the encounter.

The eight text messages included one which said ‘sorry’ 21 times, prosecutor Tom Clarke told the jury at Oxford Crown Court.

Another read: “If you call the police and cry rape and that I spiked your Ribena, then our friendship will be over because I can’t cope with that stuff.”

Nicholas Syfret QC, defending Murray, yesterday put to the alleged victim that she had been offended when the following morning Murray had acted calmly about what had happened between the pair, including the fact that the condom had split.

“It was like it never happened, he was so calm,” she told the jury.

Mr Syfret said Murray had acted practically about the problem of the split condom and this had upset her as it demonstrated his lack of romantic feeling.

“Was it clear to you ‘he does not regard me as being good enough to be his girlfriend?’,” he asked the alleged victim.

She replied: “I never wanted to be his girlfriend.”

Mr Syfret claimed the rape allegations had spiralled out of control when the teenager’s sister told the police.

The teenager said she had not woken up with a hangover that morning and had not intentionally taken drugs. She could not explain why she did not remember the sexual encounter.

She said she did not know they had sex until the following morning when he told her about it.

She insisted that she and Murray were not established sexual partners, despite the fact that three condoms with her DNA on were found in a bin at the flat.

Murray denies rape at his then home in North Oxford.

He now lives at Logie Drive, Logiealmond, Perth.

The trial continues.