I read this post earlier and it started me thinking and I think you are right about how being well matched physically can make sex more enjoyable. I have been pondering this since I read it the first time hours ago. And the best sexual interludes I have had have not been with a person that wrapping my legs around felt like they were being torn out of there sockets. Nor when there weight lowered down on me felt like my chest was caving in. Nope the best lovers I ever had were more my build height and weight. It was more then just the fact it lacked the painfull aspects to it but positioning and movement seemed to flow more naturally also. It was more of a fit to comfort allowing for more enjoyment I guess.
But whats a girl to do the fact is I like the big brawny type which does not match up to me physically at all.