Iguana: I like the logic in the explanation above. I've never experienced this phenonemon, or read much about it. When your girth is greater in the semi-erect state, is your length smaller, larger, or the same than it is when you're in erect state?
If the length is smaller, I would presume that the tunica is the same size in both states . . . meaning the tunica may still be the limiting factor.
On the other hand, if the length is the same size, then the smooth muscle is probably the limiting factor. |