YOU SAID:

I'm going to walk my pet sister

INTO JAPANESE

私は私のペットの妹を歩くつもりです

BACK INTO ENGLISH

I'm going to walk my pet sister

INTO JAPANESE

妹に会いに

BACK INTO ENGLISH

I'm going to see my sister.

INTO JAPANESE

妹に会いに

BACK INTO ENGLISH

I'm going to see my sister.