Written by I am not sure I have enough proof here, but here goes. Aside from watching this little tale unfold with my own two eyes, I think the pictures tell the story. I find it interesting that the stash of “fluff” was not only, not hidden, but was at an elevated view. Theodore is seen trying to return the “fluff” back to the pillow I think. Jacqueline was proudly guarding the stash. Meanwhile the victim pillow was left in the wake, on its own to zip itself closed at a less than full status. Upon dad intervening both of the twins readily handed over the remaining “fluff” they had clenched in their growing fists. I returned the “fluff” to the victim pillow amid the verbal urging of Jacqueline, who was saying “shzip, shzip, shzip”. I finished the brief surgical procedure and the twins both clapped as if their relinquishing the “fluff” was a noble act worthy of praise.
This is the victim pillow, left open to more pillaging
Theodore makes a mad dash to return the evidence
Jacqueline guards (loosely) the accumulating pile of "fluff" while Theodore grabs more. (Notice she wipes her hands free of the evidence)