"Pearls are supposed to stand around and you know, carry your stuff for you." As stated by Peridot, what if that was meant literally? What if Pearls literally carry your stuff and like our Pearl, they keep it inside of their gems?
We've seen two other gems keep miscellaneous items inside of their gems that didn't pertain to anything they normally have. Garnet doesn't count since she's simply making an adjustment to her sunshades(goggles).Big Bird-
Who held various objects that it swallowed. Notice, Steven didn't go inside the bird, trapped inside of a bubble. Meaning, someone placed the various bubbled objects inside of the bird.
And Lion-
Who held Rose's things.
More evidence for the Big Bird is Blue Pearl theory and the Lion is Pink Pearl theory.
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Steven Universe Theories (Continued)
RandomThis goes along with my previous theories! I hit the limit on the other book.