I'm worried about my girlfriend?

My girlfriend and I been together for 4 years already. I'm so much in love with my girlfriend. She wants to make love with me and she's getting really frustrated with me that we don't. Can I just buy her a vibrator or a or something? I want to make her feel better. I don't want to use my privy member though nor finger her or eat her out. I am attracted to her but I think doing those things are perverted.