If you were to command me to sit, I now could follow it.
Well, that may be a bit of an exaggeration. Let me rephrase: if I'm sitting, and you command me to sit, and you stated the command pretty quickly after I started sitting, I could follow it.
I could follow it until I fell over. Then, I'd look like this:
Do you realize how tough it is to sit upright with these cheeks?