His legs did not seem to want to support him.

His long legs seemed to have no place to go.

I had tried to get up several times, and my legs didn't seem to work.

His arms and legs seemed to have no bones in them.

I took a step back but my legs seemed to have gone into slow motion.

Yes, I was so surprised that my legs seemed to give way under me.

She tried to stand, but her legs seemed to be made out of rubber.

The trouble was, his legs seemed to belong to somebody else.

He moved farther away, but still his legs did not seem to move.

She was one of those women whose legs seem to come up to everyone else's shoulders.