As my friends Carol and Robert put it, there's a lot more to sensation than skin nerve endings and one of the senses they talk about beyond the traditional 5 is pressure. And this is a source of some confusion between myself and my lover, penetration has always been the main event for her, and I find it frustrating that we can't start foreplay without her asking who's going to wear the strapon :-).
So while, for sure my clitoris and mons are the main event, both anal and vaginal penetration are a huge and emotionally satisfying part.
As I've written before, my biggest healing challenges were all about labia and clitoris, my vaginal canal was pain free within a couple of weeks while I was 2-3 monhs getting to comfortable in my external vulva.