i noticed you shot a scene with the tag 'dirty prolapse' earlier in the week. i'm not sure if it was real or not (it was then i expect the model to have been 'clean and clear' before any action started - a healthy model is a happy model after all). but it was a daring move by you, i think
it made me wonder if fake scat fetish is something you are trying to intruduce to your scenes to appeal to that audience.
if so, have you seen the work of Lezpoo? they were up and running around 2010, and though they dont exist anymore you can still check out their trailers (on the usual free xxx sites). they were one of a kind. glamorous models and very messy (fake messy). lots of great extreme imagery
i think it's reasonable to assume that studio didn't shoot those scenes with real poo, because a) it would be extremely unhealthy for the models and b) trying to get people to poo on demand is probably far more difficult than one would imagine.
so it would be fake poo on demand, using the same method as studios use for fake cumshots. mix up some brown slimy and bitty foods (crunchy peanut butter and nutella, mixed with vegetable oil to keep it runny) and use a piping bag or baking syringe to squeeze it into a thoroughly clean anal cavity (see pic below). then 'poo' it out on camera
Yummy has been shooting a lot of food 'puke and enema' scenes under their P-Sluts series, which have sold a lot (check out their numbers), and i assume they use the same method to 'load' their models as above
anyway it made me think that by mixing your dirty prolapse idea with their food play fetish, you could get a kind of scat-lite which would look a lot like your dirty prolapse moment, combing looking extreme with being absolutely healthy and safe (and maybe even fun) for the models. i don't think this site will ever be ready for real scat, but something provocative like fake 'scat-lite' might cause excitement (and so increased sales)
that said, i think you would have to make clear it was fake scat (food play) in your description, because i doubt real scat is allowed here (i'm not a studio so i don't know the uploading rules)
finally, by way of inspiration, here are some screenshots of Vivian Lola (your early scenes with her were superb) from her scene 'Coco Milk' that she shot for Yummy last year.
Vivian always looks happy even when she shoots the craziest scenes (she's a true professional) and she seems to be having a lot of fun here too
enjoy your weekend, Oscar. and thank you (as always) for the ongoing great Mambo content