On one hand, it's true that consent isn't exactly...true in the cube. On the other hand, fuck or die situations still tend to have a bit of consent between the two people actually doing the deed, at least in the "let's do it so we both don't die" sort of way. I think OP at least wanted that level of consent rather than a flat out rape situation.
I mean the situation's not really good, but it's better than not having any consent at all?
That kind of shit happens with victims of sex traficking all the time (fuck this random guy or I'll kill you/beat you/refuse to give you the drugs I made you addicted to). It's coersion. There's 0 consent with that and acting like there is... problematic and victim blaming.
NOW WITH THAT BEING SAID.......... I get that in this story is silly af, and OP does not want something OVERTLY rapey to happen. But let's not generalize a silly fun fictionnal scenario to all fuck or die situations.
Tbh I feel like most people here tend to only recognize SA when it's obvious and end up shitting all over stories that were clearly written for the CNC people all while praising stories that glorify more common forms of abuse. Not saying it's the case here. Just a pattern I've seen. People need to learn what real consent is and leave us freaks alone lol.

Nooo don't hurt him, no rape on my kinky shit. Please!!!