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.
You might not even want to see my face 
again, but please let me say...
قد لا تودين رؤية وجهي مجدداً، لكن دعيني أقل رجاءً
Du willst mir sicher nie mehr unter die Augen
treten, aber bitte lass mich dir sagen,
Imagino que ya no me 
quieres volver a ver,
Tu ne veux sûrement
plus jamais me revoir, mais…
Magari non vorrai vedere mai più la mia faccia, 
ma ti prego, lasciami dire almeno...
Pode ser que não queira mais me ver, mas, por favor, me ouça...