Holidaymakers were "disgusted" after plane passengers were filmed 'engaging in a sex act on a British Airways flight'.

A shocking video appears to show a woman "vigorously" caressing a man's groin aboard the 'red eye' flight from London Heathrow to Dublin on Tuesday.

Horrified onlookers said the couple were "constantly at it" for 20 minutes as the jet soared over the Irish sea – even though young children were on board.

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Farrah, 26, who was on the flight with her mum and brother, 32, was shocked when she realised what the frisky couple were doing on the roughly one-hour-long trip.

She said: "I was turning to look at my brother every time I was speaking, and then I saw a lot of sort of vigorous movement in the other seats on the other side."

"It was very blatant. She was constantly – for 15 to 20 minutes of the flight – just constantly at it with the guy."

"They just carried on, which was shocking because there were children on the plane. There was a child running up and down who could have seen that."

"When they got told to put their seat belts on, it was very obvious that he was zipping himself back up and putting everything back in. It was just disgusting to be honest."

Farrah, from West London, filmed the encounter on the delayed BA832 flight from Heathrow, which left at 7.28am, as she jetted off on a family break to Ireland.

She spotted the pair becoming amorous on the cramped Airbus A320 plane not long after take-off during the short journey, she said.

Farrah said the male passenger had draped a scarf over his lap. She said: "We had about 38 minutes of the flight time left when I noticed it. It was quite embarrassing for me to be sat with my brother and having to witness that."

"It was one of the smaller planes, making it a lot closer than the bigger planes. You had kids running up and down the aisles, they were between four and eight years old."

"A couple of them looked like five or six, and then maybe there were a couple that looked like they were eight or nine." At that age, when they're running past, they are going to look at something like that."

She added: "They covered themselves with a scarf, but it was quite obvious, as an adult, what they were doing."

A spokesperson from British Airways said: "Our cabin crew colleagues were not alerted to any issue on board. Had they been informed, they would have taken the appropriate steps to address it."

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