Last week, a couple had sex in a moving Tesla on Autopilot and uploaded the video to PornHub.

Elon Musk, Tesla's founder, responded to the video on Twitter on Thursday night.

He didn't refer to the video directly but said, "Turns out there's more ways to use Autopilot than we imagined," adding, "Shoulda seen it coming ..."

Tesla's Autopilot isn't a fully driverless system, and the company recommends drivers always have both hands on the wheel when using it.

The company is also facing a lawsuit from the family of a man who died in March 2018 when his Tesla in Autopilot mode crashed.

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Elon Musk responded on Thursday to the porn film of a couple having sex in a moving Tesla vehicle on Autopilot.

While he didn't directly refer to the video, which the couple uploaded to PornHub last week, Musk, the founder and CEO of Tesla, posted on Twitter, "Turns out there's more ways to use Autopilot than we imagined," adding, "Shoulda seen it coming ..."

A follower replied with "Tesla is S3XY after all," to which Musk said, "Basically begging for it."

When another asked whether Tesla still planned to have a car drive itself from New York City to Los Angeles on Autopilot, currently a semi-autonomous driver-assist system, Musk said jokingly that "that journey will have a diff age rating."

"We could have gamed an LA/NY Autopilot journey last year, but when we do it this year, everyone with Tesla Full Self-Driving will be able to do it too," he added.

Last week, Taylor Jackson, an adult entertainer, and her boyfriend filmed themselves having sex in a moving Tesla and uploaded it to PornHub.

Tesla's Autopilot isn't a fully driverless system, and the company's website says the driver should still have their hands on the wheel and be "prepared to take over at any time."

Jackson told INSIDER she wasn't afraid, though she did bump the steering wheel and knock the car out of Autopilot at one point in the video.

"It was mainly a straight road, but it had a lot of traffic," she said. "We had a lot of cars driving by us."

Read more: Why Mercedes plans to let its self-driving cars kill pedestrians in dicey situations

Taylor Jackson and her boyfriend filmed themselves having sex in a moving Tesla. Taylor Jackson

Tesla hasn't commented publicly on the video, but it's unlikely to condone such behavior or make light of it as Musk did. Tesla is involved in legal proceedings related to the safety of the Autopilot feature.

Read more: A couple shot a porn film in a Tesla on Autopilot while there were 'a lot of cars driving by'

The family of an Apple engineer named Walter Huang, who died in March 2018 when his Tesla Model X in Autopilot mode crashed on a California highway, is suing Tesla, alleging that the car was "defective in its design."

Tesla said in a blog post shortly after the crash that Huang "received several visual and one audible hands-on warning earlier in the drive" to remind him to put his hands back on the wheel.

Musk suggested earlier this year that Tesla's Autopilot system could be safe for people to use hands-free by the end of this year.

Tesla did not immediately respond to INSIDER's request for comment.