Pero = but Chico = boy
Su autorización - Its okay
Su hyun
"Su hermana" means "his/her sister" in English.
I assume you mean the English equivalent. "boy"
"Su casa" means "your house."
Estoy a su bebe in English means I am a baby.
'Cuando llora el chico' means: when the boy cries.
It depends on context. It can be his, her, your, their.
It means "In your house".
Of course
His/her/their passion is.