Science fiction, simulation machines which everyone uses to experience their fantasies, especially (but not limited to) sex

[Kin]

Read the book around 2010. I sort of remember the word ghost either being in the title or maybe in the name of the company that makes the simulation machines, not sure about that though. Main character is a male, sex is a big focus in the book.

I think the characters you can interact with in the simulation are modelled off of real life people, and I think the main character meets one of the people in real life that he interacted with in the simulation

Spoiler





The guy ends up having sex with one of the main female characters, and he chokes her as she requests and she pretends to go limp which scares him into thinking shes dead momentarily.