YOU SAID:
I-Is this... Senpai's dad...?
INTO JAPANESE
あ、これ…先輩のお父さん…?
BACK INTO ENGLISH
Oh, this... your senior dad...?
INTO JAPANESE
あ、これ…お父さん…?
BACK INTO ENGLISH
Oh, this... dad...?
INTO JAPANESE
あ、これ…お父さん…?
BACK INTO ENGLISH
Oh, this... dad...?
That didn't even make that much sense in English.