Fast Twitch Fiber
New member
I was talking to a girl the other day about size (don't ask for the details about how this topic was started). I was explaining the concept of "workout shrinkage", you know, how some guys shrivel up to almost nothing during exercise. She had no idea that penises changed sizes like that. She thought they had two distinct sizes, one soft and one erect. I had an interesting time explaining that they change size frequently based on temperature, stress, clothing fit, etc. She was fascinated. Are all women ignorant of this?