YOU SAID:
I'm jimzi and my sister jigozi
INTO JAPANESE
私はジムジと妹のジゴジです
BACK INTO ENGLISH
I am Jimji and my sister Jigoji.
INTO JAPANESE
私はジジと妹のジゴジです。
BACK INTO ENGLISH
I'm Gigi and my sister Jigoji.
INTO JAPANESE
私はジジと妹のジゴジです。
BACK INTO ENGLISH
I'm Gigi and my sister Jigoji.
That didn't even make that much sense in English.