You continue your way and sit on a bench make sure you drink some water on your walk to that bench. Holding tight? Ok Take your time to feel that plug and that enema filling up your ass make some twist with your behind on that bench so that you really feel it moving. If you're exited or hard let your dick get limp again and your mind sober. Then make some twists again until you get hard and excited again, then continue your way.
Almost done. But there are some more things.
Oh and if you could find talc on the way it could be a big help for me.