That is adorable! Reminds me of all 3 girls squishing into their castle (like an igloo but has 2 entry points instead of 1), sometimes there is a squabble and therefore there is no room so Buttercup jumps on top instead.
That's so cute! My piggies never sleep right next to each other, if one of the girl's foot bumps another one's they start bickering! My boy tries to cuddle, though, but no one lets him. Do you have boys or girls by any chance? I remember reading a thread about piggy cuddling, and it seemed like boys do it more often, oddly enough!
I have boy pigs. If I'm watching them, they do the same thing..."Mom! He touched me!"lol But if I pay them no mind and just work on the computer, I'll glance over to see what's going on and they're snuggling.