McGinn girl, penile inversion, 1 1/2 year post op.
I'm not quite clear on what you mean by sensitivity. Very soon after surgery, like a couple of weeks later, I could feel my G-spot/prostate and a few weeks after that I had a vaginal orgasm.
While dilating or during intercourse I can feel "fullness", but I do not feel sensation as you would by rubbing your fingers over your skin. If others do, and that is something I have to look forward to, *
oh wow*.
And as Matilda mentioned, it feels like I have always been this way. And having had "outdoor plumbing" is so alien to me that it seems like a dream (nightmare

) from another person.
-Sandy