YOU SAID:
Donut kitten is my one and only friend
INTO JAPANESE
ドーナツの子猫は私の唯一の友人です
BACK INTO ENGLISH
Donuts kitten is my only friend
INTO JAPANESE
ドーナツの子猫は私の唯一の友達です
BACK INTO ENGLISH
Donuts kitten is my only friend
You've done this before, haven't you.