They'll break the three female rule if they're not careful.
In a twist, it is revealed that one of the guys turns out to be a pirateFaris a girl.
She'd have some severe hormonal disorder, then.
Who would that be, though? If anyone, I'd bet on Gladiolus. He's so big and beefy that all that may just as we'll be a costume/mecha that she's controlling from within and she's really tiny.