YOU SAID:
cats jump on cakes that are fluffy
INTO JAPANESE
ふわふわのケーキに猫がジャンプ
BACK INTO ENGLISH
Cat jumps on a fluffy cake
INTO JAPANESE
猫がふわふわのケーキに飛び乗る
BACK INTO ENGLISH
Cat jumps on a fluffy cake
That didn't even make that much sense in English.