Renley and Lili make it quite clear that there’s nothing wrong with a little sibling rivalry of the cuddly variety.

This brother-sister duo has been almost inseparable since birth. The kittens were adopted by their current owner, Sonja, when they were about eight weeks old, and for as long as she can remember, they’ve adorably crammed into the same bed every night.

As the months have gone by, the kitty bed has become a bit more crowded. Cats grow up fast, after all. Every night is like a boxing match where neither competitor is willing to back down, and after a while, they both just give up and get their snuggle on.

Like any formal sports competition, our competitors begin with a friendly embrace.

Renley goes on the defensive with a yawn-stretch combo.

But Lili smothers her brother with kitty kisses in retaliation.

Then all their plans just go straight to Hell.

Now is not the time for a catnap. We have a winner to declare!

Renley may have won this round, but there’s another night of combative cuteness on the horizon. Stay tuned!

For more of this pair’s crazy antics, be sure to follow them on Instagram. Just try not to explode from all of the preciousness.