>>3661720Fuckernutter, you're thinking of the story I wrote. I was planning on illustrating it, but never had the time.
It was his sister, she had a hidden lab, she stole his penis, cloned it, used it to become futa, attached 30+ of them to her body and covered herself in vibrating male toys, etc. Near then end she sold them to all her friends.
At least, I think that's what you're remembering. Its on 4chanarchive if you want to find it again.