It was Liam's 18th birthday, and both he and his penis knew they were about to face the inevitable armpit fetish training.
A nurse entered his room and led him to the chamber, where a machine quickly removed his clothes and pushed him into a chair. Before he could register what was happening, his penis was full surrounded by a metal tube, and he felt something enter his asshole. He saw a large screen in front of him.
"Hello, Liam," he heard as a female appeared on the screen.
"I'm sure you have heard of armpit fetish training. We will start with a diagnostic test, where we put several types of pornography on this screen and monitor your response via your penis. We will then confirm whether the diagnostic was correct. After that, if necessary, we will purge the undesirable fetishes. Finally, we will have an armpit fetish session. Without further ado, let's get started."
As she said this, the machine grabbed his arms and held them behind his back. The room's lights faded, and the show began.
Liam saw the screen cycle through almost every fetish. To begin, he saw a woman peeing on a man. This didn't arouse him much, so his penis remained soft. He then saw a man pumping his penis into a woman's asshole, showing the traditional anal kink. Again, he stayed soft.