I just feel like going 'awwww' whenever I see them together. The TwinSqueaks are really best friends, so different from BigSqueak and PipSqueak. We can finally differentiate them now - Friendly is the bigger and fatter one.
Now that she has her own cage, PipSqueak is thriving. The bald patches on her neck are gone. Poor thing, she must have been dreadfully stressed when she was living with BigSqueak.