YOU SAID:

I’m going to touch his adult sister with my nether regions.

INTO JAPANESE

私は私の股間に彼の大人の妹に触れるつもりです。

BACK INTO ENGLISH

I am going to touch on his adult sister at my crotch.

INTO JAPANESE

俺は自分の米を食いに行くぜ

BACK INTO ENGLISH

I am going to eat my rice.

INTO JAPANESE

俺は自分の米を食いに行くぜ

BACK INTO ENGLISH

I am going to eat my rice.