Another pic.. U can see Spike in the upper left corner- very unusual to have a pic of ALL FOUR so I had to point that out.
As u can see, Zebra and Pepper tend to groom each other more often while the boys (Spike & Buddy) would groom each other. I can't find any pics of my boys grooming yet. I KNOW I have some...
Anyway, here's one more pic of Zebra and Pepper grooming..