asnextdoor saidIt was probably created so the priests can have fun.
I had a BF who wanted the option to fool around with others occasionally, to which I reluctantly agreed, since most were 3-ways that included me. One time an old friend of his came to stay with us for a week. We had outdoor 3-ways on a blanket, using the privacy of a farm field, and also some hot action in a college locker room and gang shower during the summer break.
It was after returning home from a college shower scene that my BF finally told me his friend was a priest! I almost died! To calm me down he said not to worry, his friend said it was OK, it really wasn't a sin (I was raised RC). At that point I was screaming: "What do you mean, HE says it's OK? You've been letting me have sex with a priest and never told me! What if it's NOT OK?!?"
I finally calmed down, and now in retrospect I find it funny, and don't expect to spend any extra time in Hell for it (after all, you can't add any more time to eternity, can you?). But I can certainly believe those priests are horny for gay sex, and that showers, saunas and bathhouses would appeal to them.