Not to get too personal but how is the sex? The quiet ones are the ones waiting to get fukked to Jupiter. Try mixing it up a little. Start a conversation with her and just make her put her hand on your dikk. Keep talking to her like it is nothing and then ask her to tell you what is she going to do with it. I turned out this virgin in college with that move. She was shy and quiet as hell to. Jesus Freak. After releasing her inner freak, she was a lot more fun to be around.