YOU SAID:
My sister is next to me and stinks
INTO JAPANESE
私の妹は私の隣にいて臭い
BACK INTO ENGLISH
My sister is next to me and smells
INTO JAPANESE
私の妹は私の隣にいて匂いがします
BACK INTO ENGLISH
My sister is next to me and smells
You've done this before, haven't you.