Series 4

Olivia meets Katie Price, former Atomic Kitten Kerry Katona, and TOWIE's Lauren Goodger to find out why they're on OnlyFans.

Olivia meets Lily Phillips to understand how sex stars have raised the bar for creators to cause maximum outrage in a bid to attract subscribers.

In this episode Olivia combats her own personal distaste for feet to explore one of the most overt sexual kinks, the surprisingly popular and lucrative foot fetish.

Olivia travels to Las Vegas to see if the sex industry really is bigger and better there and for the first time she will also visit a brothel, the legendary Chicken Ranch.

Olivia explores the earning power of strong women who are cashing in on their muscles, from bricklayer who's made a million, to a body-builder in the US with an enlarged clitoris.

In this episode Olivia seeks out the latest innovators in the booming sex industry looking for the next gap in the market. From distilling worn pants to erotic audio porn.