Do you think Knocking your friend's Wife could be moral?

Let's say you had a friend who couldn't breed his wife for medical reasons, he's just unable and unlucky, however his wife really wants it, the wife doesn't want a sperm bank because it's costly, time consuming, and sometimes you don't know who even is the genetic father, she's not interested in adoption either so she just wants the real thing.

Your name comes up, your friend calls you and informs you, before you even get tested with STIs and how healthy your sperm is, how do you even process it if you were a married man, Let's see each question I have in store and you could respond below.

A) Could it be done ethically, or do you think ethics are out of the window since the topic at hand is so....primal

B) How do you prepare for it mentally knowing you are about to knock up another man's wife, anxious or have a hard on?

C) Would you put feelings aside and treat it as a professional transaction and think about your wife, or do you think about the responsibilities about knocking another man's wife and that would fuel you more

D) Would you feel like you'd have the upper hand like as a friendly dig like "I'm the real father" or you wouldn't care once the job is done?

(No it's not based off a real story, but it intrigues me as a woman to see what clicks for men in this fetish, Please don't accuse anything about my private life.)

E.G if you have more questions let me know, for example a guy was like "Would he (hypothetically) get to sleep with the wife, if Yes that' a bit pushing it"