One minor and semi hilarious question about one scene.

Besides the focus of it being detailed, explicit and fairly long perhaps in an attempt to inject a little bit of shock value into the scene or otherwise grim black humor, what did we all think of the part where two characters, at least one black (NOT a racist thing at all) talks about an@l sexual intercourse with a woman but also goes frequently into details about "you know, that substance" coming out of the bottom, and doing it joyfully but still EXPLICITLY, even referencing NATURE and you know just accepting it pretty much for what it is?

Also, besides it being like this for the reason Gaspar Noe intended, possibly, I also can't help but wonder...

When we watch say softcore erotic sex scenes that also feature those scenes, at no point whatsoever in scenes that feature err "sex from behind" do any of the characters even ACKNOWLEDGE THAT SUBSTANCE, and based off on that, I wonder, couldn't one of those characters say, perhaps, speak about somehow BYPASSING it or thinking "Well, in certain softcore or otherwise sex scenes, that you know which substance isn't even ALLUDED to, so maybe there is nothing bad there at all and somehow we don't actually come into any contact with it" and one of the characters, who MAY disagree as well as KNOW BETTER, could say -

"Well, haha, that's REAL LIFE for you folks, its a lot different to how it is in the movies". Maybe those characters could also speak how that rear entry activity say avoids pregnancy or maybe its just naughty and fun and that it is entirely normal that the bottom can also be a sexual organ and in different context, operate differently.

But they all go on and on about that "substance" and like oh well... But they also accept it and never question it at all. What do you think, thanks. :)