About the ability to focus on a specific video, I can make a button where the camera moves itself to stay in front of the video where he is looking at, like a 2d view, and then the player can alternate between player view and video view. I like this idea.
The option to choose your own video from your browser wouldn't be hard to implement considering the user can copy and paste the link into a prompt box or something, but note that in the current state, the game loads the videos from inside of the own game folder, not from the internet. I think streaming multiple videos directly from a random porn website like that would cause crazy latency(ping) while the player is in the server. It can be done, but with some limitations.
I really want to play with that island idea, with specific themes for them, and also making private dark areas like a theater or something.