ANSWER:

Anal sex is one of the major sins in Islam and Allah has cursed those who do it! If he forces her to do this, she must refuse and resist him physically if needed. If someone wanted to rape her and he would get frustrated if she prevented him, would she allow him? She must tell him that she will tell both their parents about this if he ever even discuss it with her, let alone attempt it! 

What if a husband forces for anal sex or does it by force.he gets frustated and angry if denied

Fiqh of Marriage, Halal/Haram Matters |