Their tiny baby stages are so adorable that you just wish they'd stay this little forever, but that first year always flies ...

Sadly, I just couldn't bear the congenital ... Emookitkats posted: "You've got a forever surrogate foster mom right there." Allie cat wrote: "Love that she has a paw around each!

This Maine Coon cat in the following video has been switched on to his latter mode and is so chillaxed, he even lets his human baby sister use him as a step stool. Just check out this big boy ...