>>71969
I can see what you mean, but there is a world where a sub could still chew at breasts to an extent.
Chewy party vs Titcow, where the titcow is domming though making the chewy one lose their shit and go feral for tits. Fucking, sucking, playing with, burying their face into breasts, and some chewing in their excitement work.
The more likely path is abnormally large breasts that are a more a stage prop than anything else. It is just huge breasts that release milk, or some other substance that causes addiction. Trying to gnaw and nibble the breast to get it to release more may work? It doesn't really matter if you chew or not, you're effectively defeated, but it's more desperation for what's ruining you, what has defeated you.
I don't agree with this world, and I likely wouldn't even attempt it, but there is probably a setup where it could work. Maybe just a nibble as a means to get snuffed. Dom is going to kill you, they show mercy and at least let you choose how or let you have a final small request, you choose breast smothering, or better yet to not die without empty balls. Oh, and she's gotta try to take it slow! So you nurse from a nursing handjob, disdain in her eyes while you coom. You still have more, so you in your lustful haze, your frenzy, start to really suck, or even nibble at her nipple. "Okay, enough." and she just outright snuffs u, or she moves on to trying to speedrun draining your balls before she kills you with intense paizuri. Just shifting to breast smothering without caring how much cum you have also works.