A cat called Neemo and her little brother, Bemo, have gone viral on social media after their owner revealed how their relationship has changed since they first met, and the internet can't cope with so much cuteness.

In a viral video shared on Instagram in July, under the username @neemocatt, a series of clips show the cats' behavior toward each other changing with time as the pair get closer and closer.

"This is your sign to get your cat a kitten. At first she felt betrayed, screaming and hissing," a caption says. "Then they slowly began to play with each other. They bonded even more over their love for food. They began napping together. He was invited to Neemo's birthday.

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"Cuddles together happened more often. grooming each other, howling for food together, fighting daily. 98 percent of the time started by Bemo. Things get heated when he enters her special room where only she's allowed to enter. Bemo always pisses her off, but they love each other so much."

Introducing a cat to a kitten can be a lengthy process. That's because cats are territorial creatures, and they will most likely need help adapting to a new sibling but there are some things owners' can do to make things easier.

Newsweek previously reported on the best way to introduce a new kitten to your cat and found that it can't be done all at once—they will need time to get used to each other.

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The first thing you should do is introduce them through their scent. The best way to do this is rubbing a cloth on your kitten and then offering the cloth to your older cat to smell, as well as some treats, to make this a positive experience.

You must give each of the cats their own personal space, where they can isolate if needed. It is also important to keep them separated at first and to keep their interactions monitored until they are obviously comfortable with each other.

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The video of Neemo and Beto quickly went viral on Instagram, receiving over 1.6 million views and nearly 200,000 likes on the platform.

One user, pixieonyxx, commented: "Oh. My. Goodness this is OMG I just wanna squeeze them they're so cute!! And funny."

Lindsayramos_not_lohan said: "The meow meow birthday songgggg! I want a kitty so bad."

Angey_kittie added: "[This] did not work with my cats, they love hate each other."

Newsweek reached out to neemocatt for comment via email. We could not verify the details of the case.

Do you have funny and adorable videos or pictures of your pet you want to share? Send them to life@newsweek.com with some details about your best friend and they could appear in our Pet of the Week lineup.