There’s no doubt Lottie knows who her BFF is — and she has a series of Vines to prove it.

In her latest and most popular video, the 2-year-old Border Collie from Canada gives her bestie, 2-year-old German Shepherd Grizzly, a bear hug when her owner asks, “Lottie, who’s your best friend?”

The viral Vine, which Taylor Duguay posted a week ago, has already been looped more than 40 million times.

"Lottie has a knack for doing tricks, and she loves nothing more than performing for crowds," Duguay, 20, told ABC News. "In my eyes, Lottie is a super dog."
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