A teenager who proposed to her 60-year-old boyfriend at the Scottish International Airshow has revealed she lost her virginity to him after she bought him a happy meal for his birthday meal.

Lisa Miller, 18, proposed to Jim Kerr at the beginning of September as the pair were interviewed on television about the airshow.

Now she's revealed more about their relationship, including their first date to McDonalds in Paisley in April.

Lisa Miller, 18, proposed to Jim Kerr while visiting the Scottish International Airshow in Ayr

Miss Miller told The Sun: 'I bought him a Happy Meal, then got him a cake and a few balloons too. I couldn’t afford much but tried to make it as special as I could.

'Later on we were watching movies, one thing led to another and things got a bit heated.

'It was my first time but there was no pressure and it was all comfortable.'

Big moment: The teenager proposed in front of a crowd of thousands - but it has sparked anger among many, including Mr Kerr's family

The couple have been together since November and now live together in Thornliebank, East Renfrewshire

The proposal sparked anger with many people, including Mr Kerr's daughter who is 32.

Alison Kerr said she had nothing to do with her father anymore.

Mr Kerr, a 60-year-old grandfather, lost his job when his employers found out about his relationship, even though it started when the teenager had left school.

A source close to the couple said that the relationship had started in March, after Miss Miller's 18th birthday.

BAM Construct UK, the contractors who employed Mr Kerr, said he was suspended when they discovered the relationship in the same month.

A spokesman said: 'We were informed about this in March and suspended him the same day.

'The school is fully aware and was informed over an email.

'He had worked at the school for ten years. The pupil had left the school and was over the age of consent when we became aware of it.

'At the time we became aware of this, the girl was over the age of consent so legally they hadn't done anything wrong but professionally we did what we had to do.

'The investigation has now concluded.'

A former pupil shared a photograph of the couple getting engaged writing: 'No chance. Hahaha. A girl in the year below me has got engaged to our school's janny. Fear'

A source close to the couple, who did not wish to be named, said they got together when Mr Kerr was going through a divorce from his wife, Marion.

They said: 'Lisa had not been at school for almost two years when she started seeing Jim in March.

'They didn't know each other at school, but they bumped into each other after she had left and got talking.

'It was then they realised that he had worked there and she had gone to school there.

'She loves him with all her heart. She doesn't see herself as a victim as people have been saying. He has helped her a lot and they will stick together through this.