YOU SAID:
I caught my mom kissing my ex boyfriend
INTO JAPANESE
私は私の母が私の元ボーイフレンドにキスをしました
BACK INTO ENGLISH
I kissed my ex boyfriend by my mother
INTO JAPANESE
母に元ボーイフレンドにキスをした
BACK INTO ENGLISH
I kissed my ex-boyfriend
INTO JAPANESE
元カレにキスした
BACK INTO ENGLISH
I kissed my ex-boyfriend
Well done, yes, well done!