Well while I get what your saying about oral I kinda prefer her to use her hand more seems to be a more intense feeling, mix that with her tickling my feet and I can actually orgasm from it.
I do enjoy performing oral on my wife especially when she is shaved, makes it more sensitive. When she is tied and helpless going very slow and changing up spots, then going intense for a moment then back off and just breath heavily on it has her panting.
My two favorite things are performing oral on her after she has had an orgasm and second on rare occasions while doing so she has flipped out laughing and saying how sensitive it is, the switch happens and she will say omg keep going I'm gonna cum again! Boom high fives all around lol.