Vibrators

How would you go about telling or asking your partner of 6 years that you want him to use a vibrator on you without hurting his feelings or making him feel like he’s doing something wrong in the bedroom? I have some vibrators , we just never use them in the bedroom unless we’re attempting anal, to help me relax. He doesn’t really like toys. I think he’d rather give me an organic orgasm. But I orgasm like once to three times a month from sex. It’s not him; it’s me and probably my birth control that make me feel idk less responsive on my clit. I don’t want to offend him but I’d like to have at least half the amount of orgasms that he gets from sex. Advice?