Gay how to douche

Some people have to take fibre supplements, be vegans, and hose down their entire digestive system and they'll still paint. A general rule of thumb is eat lots of fibre and drink lots of water, and if you douche, don't shoot absolutely loads of water up there.
For those just dipping their toes in the water, plenty of resources exist online about how to douche, the importance of communication, and why you should carefully listen to your body around bottoming.