A husband sucking his wife’s breast while having sexual intercourse

Question 3: What is the ruling on a husband who relishes sucking the breast milk of his wife? Is that act Haraam (prohibited) or Makrooh (disliked)? Will his wife be declared unlawful for him if it happens that some drops of milk reach his stomach? Do they have to be separated? Please inform us of the ruling of Sharee`ah (Islaamic law) on this. May Allaah benefit you!

Answer: It is permissible for the husband to suck the breast milk of his wife and she is not to be considered unlawful for him if the milk happens to reach his stomach… read more here.