Head is awesome as long as she is skilled in the art of sucking peen.
I've had it where she was good enough it took less than 10 minutes. I've had it when it seemed like forever, and took so long I started feeling bad for her. When you do finally get to the busting point, the nut is the best thing ever. Generally, my whole body will quiver and shake. Only awesomeness can ensue from that point on.