Airline boss Michael O’Leary said he hoped to launch an in-flight web offer similar to that of hotel room pay-TV services.

Customers  would be able to log into a Ryanair app using their iPads or smartphones.

They could then  gamble, play games, watch a movie,  or even view sex scenes – for a fee, of course.

“I’m not talking about having it on screens on the back of seats for everyone to see. It would be on handheld devices,” O’Leary said.

“Hotels around the world have it, so why wouldn’t we?”

The plan will probably take at least a year to become reality, due to the expense of securing a powerful enough broadband connection for its planes.

However, not everyone is happy with the plan.

Bob Atkinson, of Travelsupermarket, said: “There may be a market for porn in hotels, but that’s in the privacy of a room. Anyone could see it on a plane. It’s wrong.”

It’s not the first controversial idea from O’leary.

In October, he said he was investigating removing all but one toilet from his planes to put in extra seats.

Last year, he has previously proposed charging passengers for using the toilet in-flight.

The latest brainwave from the budget airline boss was revealed as Ryanair bucked airline industry gloom by raising its full-year net profit forecasts by 10 per cent to £377m.

The airline, which carried 75m passengers last year, raised its guidance despite a 37 per cent surge in jet fuel prices to £778m during the first six months of the year.