How do I get comfortable?

Okay. So my fiancé and I are getting married next month and we haven't done anything physical (no shaming please, we both wanted to make sure that we were in love with each other and not let physical things get in the way).

Well obviously we were discussing what all we were comfortable with, since we're both virgins, trying to get a foundation for what to expect. Anyways the conversation got around to the idea of other forms of intimacy and oral came up.

Now ladies - call me a slut but it's been my dream to go down on a man and ever since I knew I was in love with him I knew that's what I wanted to do. So when the conversation came to that and he said he was game I was ecstatic - until he said he also wanted to go down on me.

Cue terror.

Ladies, I am so worried. What if he does t and doesn't like how I taste? I will be so humiliated. I know he loves me and he assures me that there won't be a problem and he's asked me to try and warm to the idea because he really wants to do it.

How do I calm down?

I'm nervous about sex in general and this totally freaks me out. Any tips?