Is it normal to fantasize about somebody watching me poo?

This is a huge turn on for me. It must be so hot for you to feel so vulnerable in that position, doing something that so many people go to great lengths to hide at all costs. Are the guys in your fantasy attracted to this? Lets chat sometime--

Despite it seeming odd at first view, this is really just a desire to put aside the private walls we put around us. it is a submissive desire but not wrong.
frankly if i had a girlfriend who wanted this i would happily help if it made her happy.

I've come to realise that most of what we get off on is down in some way to a submission/domination dynamic and I think that people who realise it often have better sex lives because they know why they like what they like.

Yours is probably a lot more normal than most things we see here, despite a lot of people imagining it as abnormal. We all defecate, usually every day. But we've made it into some kind of secret ritual that takes place behind closed doors (as opposed to certain situations even as recent as the last century where it was a communal thing).

Being on your knees, being watched, and doing something which makes you effectively helpless for a while (plus it being humiliating) brings quite a number of submission/dominance things into play all at the same time. That's quite a skill. I like the way your mind works.

I understand why you'd find it difficult to raise this with a boyfriend but I think a surprising number of men would find themselves turned on (and probably not know why).

That sounds super hot! I'm a big fan of the whole humiliation thing, and seeing someone bent over in such a compromising position would be a pretty serious turn on! Not sure whether its normal necessarily, but what is? There are a lot of people out there into the same sort of stuff :) !