Basically you're going to take the technique from Rising Twist, but you're going to use both hands, alternating one after the other. You'll get the sensation of continually rising while gently twisting first one direction and then the other.

Using your primary hand, curl it as far around as you can and grasp the base of your penis. In one smooth motion move your hand up the shaft and off the end, while also twisting your hand as it rises. You can then either release and start over at the base, or retrace your path backwards down the penis, twisting in the opposite direction as you descend.