You can only do that in living the dream. there used to be a bug that allowed gay relationships, but nintendo "fixed" that bug. There might be some mod that allows that, but if there is, I don't know about it.

you can download the gay mod. im not sure where it can be found but you'll find it if u search.

gay mod

THERE IS A GAY MOD ON GAME BANANA!!! :3

u kinda by making a female mii look like a man

any mii I make turns gay one way or another. I put token cis het kinger from niche circus on my island because representation matters i look away and he's kissing another man. I am losing my mind

make a girl mii look and sound like a boy