Dezyred is free to play but requires you to purchase tokens in order to advance through the experience. You get some free tokens just by virtue of signing up and downloading the game but be warned, the sign up process is a bit tedious. You’ll have to visit the website and give them your email address. Then once you confirm your email, you’ll have to download an app.
That being said, this is one of the only live action VR porn experiences with even a small amount of genuine interactivity so it might be worth a try – especially given the fact that the scenes themselves are produced by one of the more respected VR porn studios out there, VRBangers.