11 adorable photos that prove kitty sibling bonding is a very real thing.

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1. Cat siblings Renley and Lili are two peas in a cute little pod.

Renley is the ginger cat and Lili has a pretty grey-and-brown coat.

Image by @renley_lili/Instagram, used with permission.

2. They’ve been inseparable ever since they were adopted together at just eight weeks old by a woman named Sonja.

Sonja says she was told the pair is probably part Maine coon and part tabby cat.

Image by @renley_lili/Instagram, used with permission.

3. When Sonja brought Renley and Lili home, the kittens quickly picked out their favorite spot.

Image by @renley_lili/Instagram, used with permission.

4. Even though they’re much bigger now, they haven’t let that stop them from sleeping snuggled together at the top of their cat condo.

Image by @renley_lili/Instagram, used with permission.

5. The fluffy duo just celebrated their first birthday.

Image by @renley_lili/Instagram, used with permission.

6. Sonja says the pair still prefers to share the top bunk, even though they’ve outgrown it. But they will gladly move if it gets too hot.

Image by @renley_lili/Instagram, used with permission.

7. “Whenever they sleep together they always do the same thing with their bodies, but opposites,” Sonja says. “Yin & Yang, brother and sister.”

Image by @renley_lili/Instagram, used with permission.

8. Renley and Lili are lucky that Sonja was willing and able to adopt them together.

Image by @renley_lili/Instagram, used with permission.

9. Separating bonding cats for adoption can lead a cat to be depressed, according to cat shelter Good Mews. Sometimes it even results in physical or behavioral problems.

/Instagram, used with permission.

10. So if you’re looking to bring home a furry feline friend and you’ve fallen in love with one that’s in a bonded pair, if you can’t bring them home together, let them find a fur-ever home that can take them both.

Image by @renley_lili/Instagram, used with permission.

11. Cats bond with each other the same way humans bond with other humans. Renley and Lili’s adorable photos are heartwarming proof of just how deep those bonds can run.

Image by @renley_lili/Instagram, used with permission.

Read more: http://www.upworthy.com/11-adorable-photos-that-prove-kitty-sibling-bonding-is-a-very-real-thing?c=tpstream