The clip begins with a shot of the back of the coach, as the car travelling alongside speeds up to draw level with a window in the middle of the vehicle.

As the camera approaches, the horny couple can be seen making love clearly in the glass window – either unaware or uncaring of the show they’re putting on for other traffic on the road.

At one point, the pair stop for a quick smooch before the woman continues to enjoy her partner’s company.

Their embrace lasts for more than a minute before the clip cuts out – leaving viewers to wonder whether their red-hot romance was interrupted by a fellow passenger.

            RED HANDED: A shocked motorist caught the couple in the act on a busy bus (Image:                      LIVELEAK)

The incredible clip was believed to be shot in Thailand before being uploaded to video-sharing site LiveLeak.

More than 380,000 people have now seen the footage, with viewers expressing their shock at the shameless act.

“I guess they got bored of the sights,” said one viewer.

“I have heard of the mile high club but I’ve never seen anything like this.”

SHAMELESS: The horny couple go at it despite the bus being full of passengers (Image: LIVELEAK)

Another comment read: “Oops, they must have thought that the windows were a little more tinted than they actually were.”

Earlier this week, a shocking video emerged showing a man and woman engaging in oral sex in front of disgusted customers queuing in a local supermarket.

The clip, filmed in an unknown location in the US, went viral on social media.

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