How Does This Joke End?

I vaguely remember a joke that starts like this:

Two Catholic boys are born on the same day, one in Ireland (Brian O’Callahan) and one in Italy (Mario Tettazani). Both boys enter Catholic grade school the same year and get excellent grades. Everyone remarks that both boys seem bound for the priesthood. Sure enough, both enter seminary and are exemplary seminarians, Brian getting just slightly better grades than Mario. Both then enter the priesthood and work their way through the ranks, with Brian just slightly working his way up faster than Mario. Eventually, it seems clear to Catholic observers that both Brian and Mario would make a good Pope, though Brian has a slight edge, and indeed both names are mentioned going into the next conclave. At the end of the conclave, Mario gets the job.

…I forget what happens next.

Brain reveals that he and Mario have been lovers for 20 years?

This page has a similar joke, but the names are different.

It’s Mario Secola, methinks.

Um…they chose The Pope by taking a Pole?
No…wait. That was last time.

Isn’t the punch line something about Pope Secola? (Pepsi-Cola)

…err, or something like that. I seem to have missed a line, too somewhere.

I think that’s the punch line. Never mind the fact that the Pope takes a new name and Catholics wouldn’t be calling him Pope Secola anyway.

It was the Pope-Secola joke. I had the names wrong.

Thanks for the help.