A traveller on a Ryanair flight has posted video of what appears to be two passengers performing a sex act in plain view of other passengers around them.
The video, posted on Twitter, shows a man sitting back in his chair with a plastic cup filled with bubbles and a woman's head in his lap.
At times during the footage, the man then appears to look straight down the lens of the phone recording him, which is being held by someone in a seat across the aisle.
The couple also kiss during the video and the man's genitals can clearly be seen. It's not known which specific flight it was filmed on, but it was posted this week.
Ryanair policy states passengers can be removed from an aircraft if they engage in any sort of sexual behaviour.
"If, in our reasonable opinion, you conduct yourself aboard the aircraft [...] in a manner which we reasonably believe may cause or does cause discomfort, inconvenience, damage or injury to other passengers or the crew, we may take such measures as we deem reasonably necessary to prevent continuation of such conduct, including restraint," the airline states.
"You may be disembarked and refused onward carriage at any point, and may be prosecuted for offences committed on board the aircraft."
The video has been viewed tens of thousands of times and has sparked jokes mainly aimed at the budget Irish airline.
"It's good to see Ryanair providing free in-flight entertainment these days," said one commenter.
"Because Ryanair didn't serve enough sausages, she might be hungry," quipped another.
Another simply exclaimed: "Outrageous!".
Alan White, who appears to be the original poster of the video, captioned it: "Fair play to Ryanair for allowing this. I'll factor this in when making my next flight booking."
