Percy Jackson series

"Of course the Percy Jackson series!"

His vision blurred as he was suddenly placed into a white room.

"Sorry, I left out some things! We need to explain the enforcer part, you are indeed enforcing girls to have sex but the moment you enter a world there will be standard sex rules put into place for a sex enforcer. The girls only have sex with you unless you tell them otherwise, but if you want to change something about the world just say it out loud and I'll see if I can change it! Alright, CYA!"

This time, his vision blurred again and he woke up laying down on a patch of grass.

Looking up, he saw a pair of towering marble pillars that had the words "Camp Half-Blood" carved into them.