Apple has tried its best to keep iPhones porn-free by blocking users from downloading adult apps.
But by using the phone's existing videophone, X-rated entrepreneurs sidestep the company and let the consumer decide.
"We've been working on it since the iPhone 4 was released. We just want to give customers what they want," the New York Daily News quoted Quentin Boyer, spokesman for the adult production company, Pink Visual, as saying.
"Users are free to use the phone as they wish. The phones come equipped with Web browsers, too, and Apple cannot stop people from looking at adult sites," he added.
His for-profit enterprise isn't live yet.
There are still technological hurdles to be overcome.
Adult performers would want their phone numbers masked so they can't be stalked and it is unclear how payment would be arranged.
Boyer said Pink Visual expects to charge around 5 or 6 dollars a minute, probably by credit card. Then there are the physical challenges.
"You can have the phone on your face, or other body parts, but not both at the same time. Most customers want the full package, and it's going to be difficult holding a phone," said porn star Teagan Presley.