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When @tanishaabolton shared a video of her Staffordshire Terrier's excitement as his human sister returns from nursery school

she had no idea it would go viral. But, given the value of the footage, it happened!

The sweet interaction between this little girl and her pup has over 3.7 million views.

"I honestly don't know what's cuter, the girl's giggle or the doggo," said @Rachel. Indeed! It's a tough call.

This is one of the sweetest videos we've ever seen of a dog and her tiny human! Who wouldn't fall for these two? 

Afterwards, Mom posted another video of the two of them together. Prepare for maximum cuteness.

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