(repost, not my text)

Any scenarios where a shy couple is put into a situation where the woman has no choice but to shit on her partner?

Is there anything where a person kidnaps a couple, then ties them up in such a way where the guy is on the ground and the girl is on top, and the person tells them that he's not going to torture or kill them, he's just going to observe. He'll let them go when the business is completed.

I'd like it if the girl were chained to an outhouse-like toilet box, with her boyfriend trapped in the box below, staring up at his girlfriend's butthole. And she's being overfed fiber and laxatives and beans, and she has no choice but to urgently fart and shit all over her boyfriend.

The scene goes through a mental progression where at first the couple is angry, thinking about how to escape, the guy acting tough and being sympathetic, but then as the hours go by, the realization of the issue where she's going to inevitably shit on him dawns on them. It would be an almost mindbreak scenario, for the girl mostly, but also possibly the guy depending on how disgusted he is.

Really, looking for any scat situations where the two people are forced into doing it to each other by a third party.