Girlfriend bought a vibrator and more..?

Well my friend, I wouldn't run. You could end up having some real fun. Have you ever completely controlled a woman's ual pleasure in bed. It is a seriously gratifying experience. Look it is not a question of your ability. She simply wants to expand her ual ets. She's , you are either with it or your not. I don't think you have to worry about being harmed or anything. Now eventually she will tell you why she is the way she is. If you really want to know you will have to go along for the ride. Trust me, if you are a good sport you might get more out of it than she does. So no, don't be jealous, insulted, or any type of negative emotional state. Be supportive, be productive, and be enthusiastic. Mostly though if you aren't willing to try something let her know. Or just take it really slow, she may dream up something that grows on you.