Greetings and Peace, all

Salaam,
Marriage has nothing to do with kidney and a cup of sugar... you already know that. Even without marriage you can share or donate these things, but sex is something that has to be lawful which is done by marriage. Anything in its relation as AI is also not lawful [as per my understanding] until they get married.
And who will be the dad and mom of the baby, the unlawful father? I don't think so. Hope you understand my point.
Women are only lawful for men after getting married, what this mean to you?
May Allah guide us all to His true path 
mmKhan
AI has nothing to do with marriage either...that was the point! Is there something inherently "dirty" about organs or bodily fluids?

What is the REAL difference between a kidney, a pint of blood, or a few cc's of sperm? Why can one donate a kidney or blood, but not sperm? Donating sperm is not sex any more than donating blood is sex!
You do know that cloning can be done from all types of cells now, right? The cells can be made to undifferentiate from even skin cells--no longer are fetal cells required. The point is that an entire creature can be made from just a few cells--the entire process is asexual. Is someone now going to try to tell me that cloning is only possible in marriage--or that the clear and complete Qur'an says that cloning is forbidden?

The mom of the baby will be pretty obvious...momma's babies, daddies maybes!

Calling the father unlawful is loaded language--in multiple ways. Although the male was the source of the sperm, he is hardly a "father"...and the "unlawful" is per your understanding. To you your understanding; to me mine.
About 16% of all children only live with one parent.
VERY few of these cases involve AI. If children only having one parent is a concern, I suggest concentrating here first.
Source:http://economix.blogs.nytimes.com/2010/03/10/single-parents-around-the-world/
Since AI is not sex, it would mean that "only lawful in marriage" doesn't apply--this is what it means to me.
We all go by our best understanding. If you don't agree with AI, don't donate sperm!

I have a strategic advantage if I donate and you don't--the "fruit of my loins" will populate the earth! <just kidding> Everyone is entitled to their own opinion and consequences--but nobody is entitled to (en)force opinion.
ALLAH knows best.

~Abdul-Hadi