It's an actual GENRE in this fandom! Apparently, the story is that one of the very first influential slash stories in the fandom was one in which John and Rodney got turned into penguins and had lots of sex as penguins, and it kind of ... caught on. But, seriously, this is THE most crack-happy fandom I have EVER been in. I primarily read sgastoryfinders just for the requests, such as "The one in which John and Rodney get turned into walls" (an actual story ... and actually pretty cute, I must say).

I think SGA fandom has totally recalibrated my crack threshhold. I remember that one of the very first SGA stories that I read was a gen one in which John accidentally got turned into a dog by an Ancient device, and it completely weirded me out. Now? I don't think I'd give it a second glance. *g*