A 21-year-old woman from Hyderabad has told the police that her husband has forced her into having unnatural sex with him and his friend. He had physically and mentally tortured her till she agreed and his family, who knew about it, had insisted that obeying his wishes was her duty as a wife, she said in her complaint. The 26-year-old man, who had gone to Australia to study after their wedding last April, returned in February and started his obscene demands, the woman has alleged.