Headcanon: Logan will very routinely just forget how to speak English and will often lapse into Spanish or Simlish.
Like, Logan is self-taught, right? And you know how sometimes you can learn something super complicated and forget the simpler things, right? (Like, completing a difficult test and forgetting your own name but you can recite the Pythagorean theorem in your sleep.) It’s sort of like that.
Also, he and Roman would talk in Spanish a lot when they’re just gossiping or talking about something more private. Or if it’s just the two of them, since Logan believes it’s the best way to keep practising.
He also usually ends up just confusing himself.
Imagine him in the kitchen, half-asleep and thinking he’s talking to Roman.
Logan: -y yo dijo, “Eso es una mierda. Necisitamos abordar… el…”
Logan: You’re not Roman.
Logan: I mean this in the nicest way possible, but shut up before I… uh…
Logan, sighing and turning to Roman: Ugh. ¿Roman, como se dice ‘un zapato’ en inglés?
Roman: A shoe?
Logan, nodding: That’s it.
Logan, turning back to whoever he was talking to: Shut up before I throw a shoe at your head.
Additionally: Remus also knows Spanish and sometimes helps Logan, who practises on Roman.
Logan: Hola, Roman. ¿Te gustaria tener sexo conmigo?
Roman, wheezing: You WHAT?!
Roman: Wha- no, I do not!
Logan: *Puts it into a translator*
Logan: Goddammnit, Remus.
AND: he knows a bunch of other languages, too! Which make it pretty difficult for him to get his point across when he’s either spaced out or too overwhelmed to think properly.
Patton: Uh, what do you think, Logan?
Logan, half-asleep: Uh, non.
Logan: Oh, uh, je ne sais pas.
Logan: Sorry, ich weiß nicht
Logan: Um, hindi ko alam
Logan: Wait, uh- yo no sé
Logan: *Becomes weirdly silent as he loses his whole sense of self*