In a sci-fi world, maybe in the 22nd century or 23rd, A new technology is developed where you can link up your dreams with another person in the world.
For this story, a young man links up his dream with his childhood friend, to see how it feels, and to have fun.
Than, once they get into the dream, they both realize that anything they think of can materialize, such as a sexy outfit or a bed, and etc.
They fuck. happy ending.