YOU SAID:
hes bouncing off my booty cheeks
INTO JAPANESE
彼は私の戦利品の頬に跳ね返る
BACK INTO ENGLISH
he bounces on my booty cheeks
INTO JAPANESE
彼は私の戦利品の頬で跳ねる
BACK INTO ENGLISH
he bounces on my booty cheeks
That didn't even make that much sense in English.