PornHub, which claims to be the world's biggest pornography site, is crowdfunding for a sex tape filmed in space.

For the project, PornHub is teaming up with Digital Playground, a leading adult entertainment studio, along with a team of specialists, according to Engadget. A promotional video on the fundraising page notes the film will feature adult film stars Eva Lovia, 26, and Johnny Sins.

"In doing so, we will not only be changing the face of the adult industry, we will also be chronicling how a core component of human life operates while in orbit," the site's $3.4 million appeal reads.

"If all goes well, the schedule will include an entire six months of training for space travel for our crew and performers before we're comfortable with launching them into space," PornHub Vice President Corey Price told The Huffington Post by email. "We need to know all participants are sufficiently prepared for the rigors of space-age coital activity (as well as filming in or past the stratosphere)."

Lovia said she cannot wait to join the 68 Mile High Club (the action will take place 110 km above the Earth).

"The bragging rights alone are worth it," she said. "We don't know if any astronauts have had sex in space, so we'd be the first to publicly admit it."

Sins, whose age remains undisclosed, is considered to be an "industry veteran" who has more than eight years of experience.

"We're gonna make porn in space!" he said in a campaign video filmed with Lovia.

"Sex is very difficult in zero gravity, apparently, because you have no traction and you keep bumping against the walls," biologist Athena Andreadis of the University of Massachusetts Medical School told SPACE.com in 2011.

"Think about it: you have no friction, you have no resistance."

Camera equipment must be retrofitted to withstand potential atmospheric changes, and all space travelers will have health screenings before liftoff, news.com.au reported.

"Thankfully, we have a very experienced production crew and directorial team to help make the money shot happen in a way that looks dynamic and revolutionary for viewers," Price said.

Fans who donate $10 to the cause are slated to receive an advanced viewing; a $20 donation earns donors a video chat with the project's "sextronauts." Those donating at the top level, $150,000, earn the two spacesuits worn by said "sextronauts." In its first seven hours of fundraising, the site raised just a little over $1,000 from 44 donors, according to CNBC.

If the funding level is reached, Price is hoping the film will blast off (in more ways than one) in late 2016.