Mom's viral TikTok shows the 4-year-old and his little sister becoming “best friends” over the course of a year

A viral TikTok video shows a 4-year-old boy and his sister growing over the course of a year

Hope Cameron

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It's one of the cutest videos you'll ever see.

A mom has gone viral on TikTok for sharing a year about how her kids have “become best friends” and are growing every month.

Hope Cameron tells PEOPLE that she started taking a short video of her son holding her daughter in August 2023 and continued the habit until July 2024, “every month until my daughter was 1 year old.”

“She was a month old in the first clip and a year old in the last clip,” she says.

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The video – which has been viewed more than 300,000 times on TikTok – first shows Cameron's little boy smiling as his little baby sister is handed to him. As the video progresses, the little girl gradually gets a little bigger until she is 1 year old in the final clip. (The proud big brother is getting bigger too!)

The video's soundtrack is Randy Newman's classic “You've Got a Friend in Me.” toy story, which makes it all the more enchanting.

Commenters enjoyed the video and wrote that the little boy “always had the best support as a big brother.”

“His smile just shows how much he loves his little sister,” another commenter wrote.

Hope Cameron

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“The baby has grown, but so has he!! I love it!” writes another.

Commentators also noticed the children's clothing, which changes depending on the season (in some clips they wear Christmas pajamas, in others they wear costumes).

As Cameron explains on TikTok, the children are four years apart.

“I was really worried about the age difference, but it was really amazing to see them together,” she writes. “He helps a lot and takes care of them.”

Commentators have suggested that Cameron continue the tradition and even requested that she film a variation when the children are much older.

One TikTok user wrote: “Please recreate this on your wedding day!”

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Read the original article on People.