My Boyfriend wants to go down on me, but I'm insecure about it?

My boyfriend told me he really wants to go down on me,and I've never been given oral sex(but I give him oral).But idk, I'm scared of how I'll smell or taste.I shave,and I'm bare and I already told him about this,and he said if it'll help me relax,we can both take a shower before to get us in the mood.But I just keep worrying about how I'll taste and smell.He says it's ok and that he wants to do it and he wants to taste and smell me,but,idk.Advice?


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