Bringing up a boy and a girl together by their grandmother does not make them Mahrams to each other

A: Being brought up with some people does not mean you are a Mahram (unmarriageable relative) to them, or that you may sit in Khulwah (being alone with a member of the opposite sex) with them or deserve a share in inheritance. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.