I hope your Enema was successful and you are clean inside your...ähh..My Boihole. Next part now is a bit tricky but i am sure you can do it.
Take your Looner (if you have a long formed ballon take this if not take the one you have). Goal is to fill your ass with a Water filled Looner.
The Way you do this is completly your choice. I give you a suggestion...
------Take Looners and your Lube and go to your Shower. Take 2 minutes cold shower only on your Cock&&alls then take 3 minutes a nice warm shower on your body especially your Ass Region. Take off the Shower Head so that you have only the flexible tube. Turn warm water on but not full power (it is better to fill very slowly the looner cause it stretches you more and your health). OK take the flexible tube lie on your Back, Ass up.
Lube the flexible tube and your Boihole. Take the Looner put the flex. tube in it and the both right up in your hole. (maybe before you put all in your hole, try to find out how to hold both to get best filling effects).
The tricky part is to get comfortable, your hole relaxed, while holding both and slowly getting the looner and your ass filled and stretched. ------
Fill it take out the flexible tube and make a knot to close the Looner. If you want bind a shoelace at the end.
I do NOT want to see you again without a nice big (minimum 1 litre) water filled Looner in your Ass and maybe a shoelace comming out of your hole. It has to be so filled that you have problems to hold it in.