YOU SAID:
thats not on me sistah
INTO JAPANESE
それは私にはありませんsistah
BACK INTO ENGLISH
It's not me sistah
INTO JAPANESE
それは私シスタではありません
BACK INTO ENGLISH
It's not my sister
INTO JAPANESE
それは私の妹ではありません
BACK INTO ENGLISH
It's not my sister
That didn't even make that much sense in English.