Sisters until the end of the line

What if ...
Percy wasn't a HE?
SHE had, not one, but, two sisters?
...
What if ... Percy was not mortal?
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Kaldur had an ity tinie bity problem... It would become harder to hide his secret.
What secret you ask?
oh ...
just the fact that her sisters were joining the team.
'Her' ah yes her, if I told you Kaldur was a girl and her name was an honnor to her mother, Amphitrite, after all her name is Amphitrite aswell.

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fem!Kaldur
fem!Percy
KaldurxPercyxOC sisters
you decide the ships!!!