A kinky device

Jon was in his room, thinking about how he should use his stone. That's when he got a great idea. "I wish, he said, I had a remote control with two buttons, one would make things a bit sexier and the other one a bit less sexy." That way, he could always reverse whatever he did with the remote. "I also wish I was the only one to remember how things were before I used the remote and that the device worked on everything and everyone." The stone glowed a bit and the remote then appeared in his hand. It was black and squared, one button had a big + on it and the other one a big - Jon exited his room, wondering where he should test his device first...