Minimum three.....then it depends on the size.
Subsequently the operation of widening the constipated ass begins with a nice big Daikon.
After this phase there is more...... only for patients who need it.
I do it myself. But I 'cook' the bananas inside for at least an hour. Then take out and eat the banana+shit cocktail. I want to perform this in front of others or may be a mistress
As a Master: I would have put more bananas, then a nice big Daikon for this constipated ass, I would have also given him some laxative to drink, kept the Daikon or even a Plug in place and then a nice diaper, left there to agonize, maybe every now and then move it with your feet.....
After having done the egg ..... I would have done a careful in-depth examination with long latex gloves above the elbow .... you will see that the patient will be happy then, he will no longer have problems with constipation.