Ok, she wants to. That doesn't mean she's ready.

If she's going down on you, that's a bad time to try to have sex with her. She's already doing what she is comfortable with.

Have *you* gone down on her. Maybe you should try it. She might be more recepitive. But then again, she might not be ready for intercourse.

Stop asking her, or trying to lead her away. When you go down on her, make it comfortable. Set her up on the sofa (she's obviously not comfortable going back to your room) with lots of pillows, soft light, great music, and start strokin the kitty. Be gentle. Take your time, and 'listen' to her body. You'll know when she likes something, rememeber it, do it more, and she'll melt in your mouth.