My on-line Dom was a paraplegic. We talked about physical strength. He transfered his 6'2" 250lb self from his wheel chair to bed etc. Hence he had quite a bit of upper body strength. We talked about the physical strength aspect of it hoping that one day we would be together in real life (it never happened). I out weigh him, so we figured I would have a weight and mobility advantage if we wrestled, however he obviously had superior upper body strength. He also had the force of will.

I think Lisais Mine has it right too. That it is physically possible for a smaller person to control a larger person.

The idea of my Dom being able to physically control me is a big turn on for me. I am not likely to find someone that out weighs me, but most men regardless of height are stronger than me. I don't know if I would be able to submit to a Dom that I didn't think could have that physical control - although with a forceful personality it might not matter. I also don't think I could submit to a Dom who is too much younger than me - I am not sure in that situation that the force of personality would be enough - I would probably just think of him as a macho cub and not take him seriously.