Classics teacher Hannah McIntyre, 25, denies plying three teenage boys with alcohol and sleeping with one of them following a game of 'dare'.
Yesterday Liverpool Crown Court heard how the teacher at the £8,000-a-year Merchant Taylors' Boys' School agreed to buy the boys cider when they turned up at her flat one evening.
While she was in the off-licence, one of the boys 'dared' his friend to kiss her for £20. When the boy failed to carry through the bet, Ms McIntyre was dared to kiss him instead, which it is alleged she did, 'passionately'.
Gerald Baxter, prosecuting, told the jury that they had all continued drinking and watching television at Ms McIntyre's flat until it was too late for the boys to go home.
Whilst two of the boys slept on the sofa, the third went to bed with the teacher where they had sex.
Ms McIntyre told the school head that the boys had spent the night at her flat, and when initially questioned about the evening all three boys denied both the drinking and that any sexual activity had taken place.
However police were called in ten months later when the alleged victim confessed to his mother about what had happened.
Ms McIntyre claims that when the boys showed up at her flat they had been drinking. They walked straight in when she opened the door and she felt 'intimidated'.
Denying the charge of sexual activity with a child by a person in a position of trust under the Sexual Offences Act 2003, she said that 'feeling stressed' she went to bed leaving the boys downstairs.
One of the boys then came into her bedroom and sat on her bed making 'sexual noises' to amuse his friends.
He left when she told him to get out and when she woke in the morning all three boys had gone.
The trial continues, but whatever happened that night, there has clearly been a breakdown in the teacher/pupil relationship when students can simply show up at a teacher's home.
Has the relationship between student and teachers become too close, blurring the distinctions between what is and isn't acceptable behaviour?