You asked for it, you got it. No Reset Club authors a lot of hilarious (and often very very smutty) books, including Sephiroth Madness. I bought this book on a whim some time ago, and because it's already scanned, I'm posting it. Enjoy - FF7 really didn't interest me too much, so I don't think there will be any more FF7 yaoi!
Some of the panels are pretty funny, especially the part where Cloud and Seph are doing an infomercial for their respective swords. The very end has some rather tame yaoi. I left out some panels where Cloud is getting bonked by a chocobo. Some things are better left unseen.