Rei smirked as soon as Chibi left. " Now, why don't you explain why you're in diapers? And you better talk like a baby while you do."
"Because I went potty in my big girl undies, so Mommy put me in diapees again." Usagi replied, not willing to argue. "And I can't keep them clean..." she added.
"And that's why you're my baby sister now." the fire-element senshi said, snickering a little.
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