Oral virgin - he is

So I’ve been dating this guy for months now and he’s never performed oral at the age of 30-some due to ex partners being extremely prude or casuals.

I love a guy going down on me, especially someone I care about.

We have discussed about this and he says he wants to do it especially cause I “take such a good care of him”.😋

But seems as if he always chickens out of it.

I think he is overthinking it too much.

How can I make him more confident in the situation?