@vonny,
I heard another version of that:
An Irish boy and a Jewish boy grow up in the same neighborhood. The one becomes a priest, and the other a rabbi. After devoting their lives to their respective congregations, they retire. They're sitting together in the park one day, when Paddy asks Morris: "So, Mo, did you ever eat a ham sandwich?" Morris replies: "Yes, in fact i have, more than once. Did you ever get laid, Patrick?"
"Well, to tell you the truth, i did a couple of times, before the seminary, you know."
"Beats the hell out of pork, doesn't it?"