YOU SAID:

My sister smells so bad she's reeks of poo

INTO JAPANESE

私の妹はうんちの臭いがするのでとても臭いです

BACK INTO ENGLISH

My sister is very stinky because she smells like poop.

INTO JAPANESE

私の妹はうんちのような匂いがするのでとても臭いです。

BACK INTO ENGLISH

My sister smells like poop so it's very stinky.

INTO JAPANESE

妹はうんちの匂いがするのでとても臭いです。

BACK INTO ENGLISH

My sister smells like poop so it's very stinky.