Never given a BJ, want to give my husband one?

So somehow I’ve got to the age I am now with never giving a BJ.

I have been with my husband for 6 years now. We have 2 children. I have never given him and bj and he has never asked for one. Not because he doesn’t want one, I know it is something he would like, I think he simply does not want to put me in an uncomfortable position by asking (was SA when I was younger).

Recently I’ve just been really wanting to give him one. Which I find a bit bizarre but the thought of giving him that pleasure turns me on. However I get embarrassed/anxious that I won’t know what I’m doing so I keep putting it off.

How can I tell him I want to give him a bj? Do I tell him or just start teasing him and move on to it? And how can I make sure I don’t completely fail at it! Any tips welcome