Maybe it's part of MC's skill that causes him to word things in the worst way possible?
...Yes and no? His train of thought is an absolute fuckin' mess by nature that'd probably go similarly no matter what, but then it gets coupled with having like 5+ skills all related to being a maximum horndog (more relevant in the LNs where he's constantly drowning in women, but since that's omitted in this version it seems like he just randomly fixates on the dirtier details out of nowhere) so it does affect his train of thought somewhat, then he hands off the more linear thinking to his Wisdom/Parallel Thinking/Etc skills to do it all faster, which causes him to leap from the beginning of one thought to the end of a different tangent instantly (
"Is she okay? I mean we fought and there was some misunderstandings of a somewhat lewd variety that furthered the complications, but she was fine in the end & we're cool now. Hell, I think she even enjoyed what happened!") & to top it all off, the dude is basically
incapable of an inner monologue (and he always has been)- he says essentially
every conscious thought that ever enters his head before he can even consider how anyone will react to said thoughts, so he just
doesn't, and we end up with nonsensical situations like this that can be easily avoided by having a rational person participate in the conversation to translate.
I honestly love how blatant this is. Author is basically outright calling mc an idiot who cant communicate to save his life
That's basically been the entire plot & running gag since the very first chapter lmao, without his crippling inability to communicate like a proper human being it'd be a standard "isekai with an omnipotent, infallible MC that everyone absolutely adores" series. It still is one of those, just not as standard & people get angry with him by assuming he's some kind of monster rapist instead of people only being able to get angry because the MC regularly destroys economies on accident or drastically remodels a town on a whim etc. etc. (Though TBH the manga makes it a lot more standard by deciding to omit the absurd amount of fixating on naked women that even ecchi series'd eventually get tired of, & the copious consensual
(?) tentacle rape that could make even some of the more explicit H series blush if it were depicted visually, but they'd need another 600 chapters to reach this point if they kept everything, lol)