New plaything

I am addicted to play with my legs in these few days. Well, i am not that type of "bian tai". I play with my legs in a scientific way. That is using the reflexes concept or theory. Pro leh!!! (:

Yeah, it is same as when your leg is feelingless and the way when doctor use a type of rubber hammer that knock on your knee. And then your leg will move upward and down again involuntary. The most important is your feeling when your leg is move without your control. Do you know feeling that when you cannot control your body? It's so awesome!

Sometimes i can feel my knee numb because of excessive reflexes are being applied to it.
Pictures stole from Google image =p