A PE teacher accused of having sex with one of her pupils on prom night was spotted "shimmying up and down" against the boy in the hours before she allegedly went to bed with him.
Melissa Tweedie, 27, is alleged to have partied with pupils at Glasgow's SWG3 nightclub before going back to a Premier Inn hotel with an 18-year-old pupil.
The General Teaching Council for Scotland (GTCS) heard earlier this week that Tweedie, who was 23 at the time, kissed the boy in a hotel room before having sex with him in June 2017.
She has since left her job at Paisley's Glennifer High School and now teaches yoga in Dubai.
Today, Aileen Sangster, deputy head teacher at Gleniffer High, told the GTCS Tweedie had been dressed "inappropriately" when she spotted the teacher during the prom.
She said: "Melissa was dancing inappropriately with Pupil A shimmying up and down his back."
The 59-year-old appeared at the hearing as the latest in a series of witnesses to the alleged events of 2017.
Ms Sangster said: "I noticed Miss Tweedie due to the outfit she was wearing.
"It was inappropriate, I put this down to inexperience.
"After the meal she had a drink in her hand every time I saw her. She said some odd things but nothing offensive.
"She said 'I feel like this is my prom.' She was talking about her boys, her football boys.
"I later found out that she had never taught any of the boys on the football team."
She spoke of seeing Miss Tweedie and Pupil A at the bar at the prom: "Melissa was standing with Pupil A licking the backs of their hands and taking a shot."
Sangster then mentioned Miss Tweedie's dancing: "Melissa was in the thick of it dancing with Pupil A.
"She danced with us for a couple of songs, then returned to dance with Pupil A.
"Melissa was dancing inappropriately with Pupil A shimmying up and down his back."
When questioned by Gary Burton, the Presenting Officer, she said: "They didn't seem to be strangers and they hooked [met up on the dancefloor] up after the meal."
She was asked about the dancing: "She had her back to his back and was shimmying.
"At one point he had his hands on his waist.
"I didn't see her doing this with anyone else.
"I didn't see her stopping that behaviour.
"I think she was hugging him at one point."
When cross examined by the panel, speaking about her concern for her at the event at SWG3, she said: "I was more concerned about Melissa at that point.
"I thought she had maybe drank too much.
"I could never have foreseen what the outcome was going to be."
She also said during the questioning: "I think she had a mindset that she wasn't going to be deterred.
"We were trying to diffuse it.
"She was determined to go back [to dancing]."
The GTCS has heard how the pupil in question admitted having sex with Tweedie at the time, and now felt "sorry" for her because of the investigation.
She faces being struck off the teaching register if the allegations are found proved, and was immediately suspended by the school after they came to light the morning after the prom.
Police Scotland was alerted to the incident and investigated it at the time, concluding that no criminality had occured.
The hearing continues.
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