The full uncensored video is posted to Pornhub (obviously it's very NSFW). It was filmed on a polluted Caribbean beach, and shows LeoLulu getting busy while a Pornhub sanitation crew cleans up around them.

The project was a bit of a departure for the agency, Officer & Gentleman. The shop has produced lots of SFW videos for Pornhub over the years, but this was it's first time actually shooting a porn video.

"Shooting an adult film was not something we ever thought we would do," executive creative director Alex Katz tells Muse. "This was new territory for all of us involved—except maybe for the stars of the film, of course. In the end, though, it just becomes a shoot like any other, in which your job as a creative is to focus on how the film is coming out and getting the shots you need. Fortunately for us, porns aren't known for their dialogue, so we didn't have to worry about anyone messing up their lines."

Plastic pollution in the oceans has become perhaps the single most popular cause for brands worldwide over the past year (in the wake of the award-winning "Trash Isles" campaign from 2017). But Katz says the impetus for the new campaign came from more personal experience.

"The idea was inspired by the experiences of some of our creatives when they went away on spring break earlier this year," he says. "They were visiting a well-known beach in the U.S. and were genuinely surprised by the amount of trash they saw both on the shore and out in the water."

He adds: "People may ignore 'preachy' messages even from the coolest brands, but we know there's one thing that will always capture their attention—sex. ... Pornhub, who are quite interested in environmental issues, were really enthusiastic about the idea from the beginning and connected us with Leo and Lulu, who star in the video, in order to make it happen."

The process of creating the film was eye-opening, in more ways than one.

"We travelled to the Caribbean to shoot the video and we were really shocked by what we saw—and that was before we even started to shoot the porn," Katz says. "We visited places where miles of coastline were covered with literally tons of plastic waste, which was really a sad sight to see. But seeing something like that with our own eyes really brought the issue home. Although we were able to clean up the small beach we shot on, we were assured that it would be covered in trash again within a week, and that makes you realize what an ongoing problem this is."

For its part, Ocean Polymers is grateful for the campaign.

"The initiative and support from Pornhub is inspired and appreciated," says Heather Wigglesworth, the group's executive director. "We are all part of the problem and must work together to find solutions. This is a brand with significant global reach spanning all demographics, so it is a very effective platform to raise awareness and support for the crisis we face in our oceans today. It would be great to see more companies of this size and stature taking the same responsibility with the audience they engage."

For more information on the campaign, visit dirtiestporn.com. To learn more about Ocean Polymers, visit cleanourocean.com.