pkpk was crying last night and now her eyes are swelled up.  Tears are strange; you cry when you're happy and when you're sad.  This discussion of tears reveals a terrifying plot!
and when you're sad, something 
like cream oozes out.
y si estás triste, sale algo como crema.
y si estás triste parecen crema.
Quando você estivesse triste, 
devia sair uma coisa cremosa.