Are you guys kidding me?
I had two (or more)bosses like that- the first one I was too shy and didn't say anything, I felt uncomfortable the whole time.
The last one- got me up against a wall and told me how he always wanted to do it with a blonde trying to be all Rico Suave. Well, lets just say he didn't bother me again and he is probably sterile.
Bosses are like any other man, if you're welcome to flirt and feel etc...It will be made known. But you can't assume you can do what you want because you're the "boss"- thats grody!