"Son of a Fish" joke

A priest is walking along a pier in Rome when he sees a fisherman ready to go out fishing.
He starts a conversation and the fisherman asks if he would like to go fishing with him. The priest says he knows nothing about fishing. The fisherman says he'll explain everything the priest needs to know.
As soon as they get out into deep water, the priest reels in this huge fish. The fisherman looks at the fish and says" Father, that's one big son-of-a-bitch"
The priest looks at the man and says " My son, please refrain from using that kind of language."
The fisherman thinks quick and says" No father, that's what they call this type of fish, a son-of-a-bitch"
The priest, knowing nothing about fishing says" What an interesting name"
When they get back to land, the priest is excited about the fish he caught. He runs to the parish and sees the Bishop in the Chapel.
"Hey Bishop, look at the size of this son-of-a-bitch I just caught"
The Bishop jumps back and says" Father, how dare you use that kind of language in church"
The priest says" No,Bishop, that's the name of this type of fish. It's called a son-of-a-bitch"
The Bishop says" Really, well how about if I clean the son-of-a-bitch and then I'll take it to Mother Superior so she can cook the son-of-a-bitch"
The Bishop cleans the fish and brings it to the Mother Superior.
"Mother Superior, I just cleaned this son-of-a-bitch, would you mind cooking it for supper"
The Mother Superior gasps " Bishop, you of all people should know better than to use that kind of language"
The bishop says" No sister, that's what you call this type of fish. It's called a son-of-a-bitch"
"Oh" says the Mother Superior, "Of course I'll cook the son-of-a-bitch"
That night at supper, the Pope comes over for dinner and comments on how delicious the fish was and wonders where they got it.
The priest says" I caught the son-of-a-bitch"
The bishop says" I cleaned the son-of-a-bitch"
The Mother Superior says" I cooked the son-of-a-bitch"
The pope looks at all three for a long time, puts his feet on the table and his hands behind his head and says " You know, you fuckers are OK"