YOU SAID:

He penetrated his newborn gorilla.

INTO JAPANESE

彼は新生児のゴリラに突き刺さった。

BACK INTO ENGLISH

He stabbed him in the newborn gorilla.

INTO JAPANESE

腹を刺した

BACK INTO ENGLISH

I stabbed him in the gut.

INTO JAPANESE

腹を刺した

BACK INTO ENGLISH

I stabbed him in the gut.