I begin with my opponent in the side control position, he has his knee up to avoid the mount.

With my right arm I hook my opponent's right leg at the knee, I press my weight onto the leg to secure it in place.

I then sit up and place my left knee on
my opponent's stomach.

Next I take my left arm and hook my
opponent's leg below the knee.





 

I then fall back with the leg secured.

To gain leverage to complete the knee bar I reach my left arm around the back of my opponent's ankle.
 

I then squeeze my knees together and pull my opponent's leg backward to complete the lock.