Paris asks Ed which month he was born in, to which he replies "May". Paris then says that he is a Taurus, the same as her. However, there are two star signs in the month of May. Without knowing an exact day of the month, it is impossible to know for sure which star sign Ed was born under.Since she and Ed are just different identities of the same person, it was easy for her to know what his astrological sign is. The same as hers.