The rectum can and actually should be emptied and cleaned first before anal intercourse or anal play. For this purpose, an enema is more suitable than a intestinal cleansing where you pump an entire 2 or even 3 liters in the colon which can cause a problem for the complete intestinal flora. An enema is something completely different and affects only the 15 à 20 cm long storage place at the end of the colon where no intestinal flora is present and where no digestive processes takes place anymore. An enema is very easy to perform, it requires only 150 to 200ml of warm water and a specially designed rectal bulb syringe or an anal douche. These items are cleaning the anus without water pressure in a few seconds. Then go to the toilet, repeat this 2 or 3 times and clean is your new entrance!