YOU SAID:

I ain't never see two pretty best friends, always one of em gotta be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、常にemの1つは醜い必要があります

BACK INTO ENGLISH

I've never seen two cute best friends, always em one must be ugly

INTO JAPANESE

私は2人のかわいい親友を見たことがない、常にem 1は醜いに違いない

BACK INTO ENGLISH

I've never seen two cute best friends, always em one must be ugly