Galko's skin got really dark as a result of tanning.
Otako comments that since Galko's skin has tanned so much, her nipples must be dark as well. Along with Ojou, Otako yells that Galko has dark nipples.
So, who's riding the red Caliburn? He's too strong.
من الذي يقود الكاليبورن الأحمر إذاً؟ إنّه قوي للغاية
Und wer bedient den Roten Caliburn?
Der ist voll stark.
En fin, ¿quién pilota el caliburn rojo?
Qui pilotait le Kariburn rouge ?
Ma chi è che guida il Caliburn rosso?
 È fortissimo.
Então, quem é que monta no 
caliburn vermelho? Ele é muito forte.