Thread:GodOfCartoons/@comment-26512791-20180802165124/@comment-24986099-20180805080121

Acting "Sisterly" or "Motherly" towards someone, the same as "Brotherly" or "Fatherly" is a way to describe a relationship between the individuals who aren't directly related in the way of being a biological sibling or parent.

Acting "Motherly" towards someone would be an easily understandable way to say "They act protective and caring towards" them. For example, Garnet, Amethyst, and Pearl act "Motherly" towards Steven, despite not being related biologically.

Same thing as acting "Sisterly" towards someone would be an easily understandable way to say "They act protective and caring towards" them.

I understand if English isn't your first language, but you're the only person who sees an issue with "Sisterly" being used as the describing term for their relationship.