A cafe owner incited an autistic teenage boy to give him oral sex in his cafe toilets on Christmas Eve, a court has heard.

Zafer Dinc, 40, of Gibraltar Crescent in Epsom, is on trial at Kingston Crown Court for causing or inciting a child to engage in sexual activity.

The offence relates to oral sex with a 14-year-old boy in the Manor Cafe in Manor Drive North, New Malden on Christmas Eve 2014, which Mr Dinc denies.

The boy’s mother broke down in tears as she gave evidence against Mr Dinc today, saying how her son had come home “scared” and feeling “sick” after allegedly engaging in the act.

She told the court how her son had been out carol singing, and came home at around 9.40pm that evening before leaving again to visit the cafe.

She said her other son had phoned his brother, and shouted to her that “something’s gone on” when he returned home.

She said: “He seemed scared. He felt sick. He was very anxious; I could see it in his face.”

The boy’s mother told the court that she was “fuming” and went to the cafe to challenge Mr Dinc, where she found him wrapping Christmas presents.

She told the court how Mr Dinc, who she only knew as the ‘boss man’ of the cafe, denied engaging in any activity with her son, saying “I’m married, I’ve got three children and I’m not gay,” and that he “wouldn’t do that”.

She said her sons arrived, where the 14-year-old said Mr Dinc was a “f****** liar”, adding “we’ve been in the toilet”.

The boy had told his mother that he had “sucked his dick and kissed him” in the cafe toilets as she phoned the police.

His mother told the court Mr Dinc had previously blown kisses at her and son which she had thought was “weird”, as well as telling her son that he thought he was “17 and a girl”.

But in a statement of agreed facts read out to the jury by prosecutor Kevin Barry, he said that the 14-year-old boy “mixes truth and fantasy” and that a physiatrist had said the boy liked “making up stories to get other people’s attention and sympathy”.

Mr Barry said that the boy had communicated with a man on a gay dating app, Grindr, and had received a pornographic image of another man’s genitalia on social networking site Jingu.

Dominic D’Souza, defending, added that the boy’s great uncle was “afraid of being alone in a room with him because of what he might accuse him of” and that the boy had become “very sexualised at a young age”.

The trial continues.