YOU SAID:
I wanna sit on your humongous thighs
INTO JAPANESE
あなたの太った太ももの上に座りたい
BACK INTO ENGLISH
I would like to sit on your fat thigh
INTO JAPANESE
太ももの上に座りたい
BACK INTO ENGLISH
I want to sit on the thighs
INTO JAPANESE
太ももに座りたい
BACK INTO ENGLISH
I want to sit in the thigh
INTO JAPANESE
太ももに座りたい
BACK INTO ENGLISH
I want to sit in the thigh
That didn't even make that much sense in English.