IT WAS ONLY A MATTER OF TIME! THE FIRST 3D PORNO FLICK!

Get those 3D glasses ready.
A group of Hong Kong filmmakers claim to be shooting the first ever 3D porno film, according to the AFP.

The working title of the $3.2 million project is "3D Sex and Zen: Extreme Ecstasy" and it stars Japanese adult actresses Yukiko Suo and Saori Harais, according to the Sunday Morning Post.

Based on a classic piece of Chinese erotic fiction, the sexy film follows a strapping young man as he discovers a royal world of "orgies, swinging and some very graphic sex scenes", the paper reported.

The film, to be released in May, will reportedly be marketed in Japan, Korea, Southeast Asia and some pay-per-view TV channels in Hong Kong- mainland China will likely be off limits due to censorship, according to the AFP.

And this is just the beginning for 3D sex flicks.

Hustler is reportedly working on a 3-D porno-spoof of James Cameron's mega blockbuster "Avatar", while Italian director Tinto Brass plans to make a 3D version of his 1979 erotic film "Caligula".