My girlfriend refuses to shave down low.

My girlfriend likes it when i go down on her, but the problem is that she refuses to shave down there. I enjoy making her feel good, but it would be alot better for me if there was no hair down there. Whenever I ask her to shave, she comes back with the statement, "aw, you think i'm disgusting don't you?" How can I get her to shave without her thinking that I think she is gross?