Bringing home a new baby is a big adjustment for the whole family, and that includes the pets.

But one tiny kitten named Opal seems to have already figured out her new role. She is going to be the sweetest, gentlest big sister possible.

In an adorable video, Opal sits near her newborn baby brother and appears to practice the quietest little meows. Instead of letting out her usual kitten sounds, she makes tiny silent meows, almost as if she knows the baby is sleeping and does not want to wake him.

It is almost too sweet to handle.

Even when her mom reassures her that she does not have to be quiet, Opal still seems determined to keep her voice down. She looks like she is trying her very best to be polite, careful and calm around the newest member of the family.

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Viewers were instantly smitten by the tiny cat’s gentle behavior.

It is one thing for pets to be curious about a new baby. It is another thing entirely to look like they are actively trying to be considerate.

But the most heart-melting moment comes at the end of the clip.

After all her quiet little meows, Opal curls up beside the baby and rests nose-to-nose with her tiny human brother. The peaceful moment feels like the start of a lifelong friendship.

Talk about cuteness overload.

Adjusting to a newborn can take time for any pet, but Opal already seems to understand that this baby is someone special. She is curious, gentle and completely devoted in the way only a kitten can be.

Something tells us these two are going to grow up as best friends.

For now, Opal is taking her big sister duties very seriously, one silent meow at a time.

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