As a gamedev (Unity programmer) I understand it's a lot of work for a single person (+artists). I was a bit surprised by the sheer amount of naughtiness that's in the game :D (and, I love it! :P )
Yes, there's no music/sound in the game just yet. There are only two situations where there is a sound. I'm planning to change it when I will find a proper music tracks that fits most of the places.