A student threatened to chop off her lecturer's penis after she believed he was trying to mock her with a cartoon due to her lack of sexual experience.

Stephanie Christol, 30, was sent a reading list by Dr Christopher Dillon which featured a cartoon called The Virgin Snail.

Christol attended King’s College London where she studied history and is believed to have met Dr Dillon in her final year when she was writing her dissertation.

Furious at the perceived slight she emailed Dr Dillon, who worked at the university’s Strand Campus, threatening to chop of his penis and stick it up his bottom.

Stephanie Christol, 30, was sent a reading list by Dr Christopher Dillon which featured a cartoon called The Virgin Snail

The defendant, from Islington in London, also sent a series of emails and offensive Facebook messages about Dr Dillon’s partner's appearance.

Dr Dillon told Westminster Magistrates’ Court that he had been helping Christol with her dissertation which was on First World War films.

He said: ‘One message threatened me with violence. Between April to 25 September there were dozens of emails.

Christol attended King’s College London where she studied history and is believed to have met Dr Dillon in her final year when she was writing her dissertation

‘One of them threatened to cut of my penis and shove it up my bottom. They were threatening I was concerned they may spread over to my partner.

‘Two of the messages said: “I am going to get you” and, “I am going to find a way to make you apologise.”

Christol sent her letters on pink and blue writing paper with the lecturer’s name on the envelope.

Furious at the perceived slight she emailed Dr Dillon, who worked at the university’s Strand Campus, threatening to chop of his penis and stick it up his bottom

Ed Cohen, prosecuting, said: ‘Starting with the emails. They were extremely abusive in their nature- saying Doctor Dillon’s partner was ‘a dog’ and ‘ugly as f***k.’

‘This caused some real issues between him and his partner.’

The defendant, from Islington in London, also sent a series of emails and offensive Facebook messages about Dr Dillon’s partner's appearance

The lecturer went to the police in September 2016 who issued the student with a harassment warning.

But the bombardment continued and Christol sent five letters, and a framed picture to the lecturer’s pigeon hole when he was in Munich on research leave.

The picture showed a gagged woman with the caption: ‘Ask the children of the UK who are grown up if contact denial was in their best interest?’

Dr Dillon did not open the letters but had a friend check what they were about.

Many of the letters told of Christol’s feelings about her traumatic upbringing and a sense of alienation from her parents.

Christol told the court: ‘They sent me articles and one of them I reacted badly to. It was at the end of a stage of articles which had been sent.

‘I was first angry because I thought he was laughing at me for being sexually inexperienced. I was a paranoid about it and I was trying to deal with my paranoia.

Christol pictured on the set of Grantchester with James Norton and Robson Green

‘The letters were an explanation of my traumatic parental background. I write a lot to my relatives.

‘I want to be a screen writer. I would like those letters which the prosecution has back, so I can send them to my relatives.

‘I wanted to use that letter for writing a book and I want that letter back.’

Christol denied but was convicted on one count of harassment without violence.

She was granted conditional bail ahead of sentencing at Westminster Magistrates’ Court.