If you have multiple dogs in your family, you know that once pets have been living together for a while, they can become inseparable. And if one of the dogs is new, it's always a pleasant surprise when the pups hit it off immediately. Here are some dog siblings who are newly acquainted, but seem like they've known each other forever:

1. You can always tell the intros are going well when there are cuddles involved. 

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2. A similar sense of humor can certainly help during the bonding period.

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3. Size differences are a non-issue when it comes to compatibility. 

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4. Naps are always better with a friend. 

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5. It's always helpful for the older sibling to teach the younger one important life lessons. 

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6. You will never want for a pillow if your brother's around. 

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7. Doing activities together is always fun. Napping is probably the most fun, though. 

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8. It's true that when you're best friends, you tend to pick up the same mannerisms... 

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9. Again, cuddles cannot be emphasized enough. 

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10. There's nothing better than knowing your buddy's got your back, no matter what. 

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