YOU SAID:
I live in mars with my kittens
INTO JAPANESE
私は私の子猫で火星に住んでいます。
BACK INTO ENGLISH
I live on Mars in my Kitty.
INTO JAPANESE
私は私のキティの火星に住んでいます。
BACK INTO ENGLISH
I live on Mars in my Kitty.
That didn't even make that much sense in English.