Observing purdah with non-mahrams
Q: A family member who lives seperately sleeps on my bed sometimes (her husband returns home late at night due to working overtime or night shifts and she is afraid to be home alone at night) my brother who is 15 years and I share the same room, we have our seperated beds. She doesn't observe purdah with my brother even though he is a ghair mahram to her. My question is, will I be sinful for allowing her in my room while my brother is there?