Thanks for the advice cherrychick. The problem is not that shes not adventurous in the bedroom, but mainly that she has problems communicating her feeling about it.

I dont think she would go for the not having sex for a little bit. She just enjoys it too much

And I try to tell her the things I like, but I see your point now. Sometimes I dont want to say anything, because I dont want her to stop doing it, because she feels that I am crticizing her effort. Maybe I will work on it somemore.