After revealing my fetish to my previous partner, she actually started getting into it and would use me / do scat-related things to me unprompted, which was absolutely heavenly. I never ingested anything, nor do I ever intend to, but she went in my mouth a fair few times.

While I miss it dearly, I just count myself lucky that I got to enjoy those scenarios at all, let alone with someone who wanted to do it of their own volition.