When the sirens are sent to a strange new world, they're in for a very messy surprise upon arrival. And much later, they lose their powers, and while walking in the rain that night, Aria does something a little dirty, and Sonata later pulls a prank on her. A few days later, Aria and Sonata fight and fall into a deep mud pit.
Contains: Light watersports, light scat, sewage, cake/pie sitting, and mud. And possible stretchy scenarios. (Note: Most of the spoilered things are more of a side thing this time, but I'm sure the presence of the first two is enough to be rated T, though not extreme or descriptive enough to be rated M)
As usual, don't take too seriously, and if you dislike anything in the spoilered text, ignore and move on to something else. Not meant to be a huge high-quality story either, just a short story by request. (And the requestor was satisfied)