Story challenge for those who like the futa/male category

I know that there are many out there who have done some incredible stories, so I have a request for you all to write a post-apocalyptic story. Limitations include: no yaoi anywhere in the story, no male pregnancies, no obscenely sized body parts, male penetration is a must, the male character works to become an important part in the changed world. Also here is a summary to work off of.

Summary: The world has been tossed on its side thanks to a mutated virus. Women now out-number men at least 50 to1 with about 1% of men left and more men are slowly succumbing to the virus. Thankfully civilization will survive with women able to get along better then men ever will. All of the surviving women have gained about a foot in height, increased intelligence, near age-less appearance, a full cup size or more, and in about 15% dicks of various sizes. This is the story of one man who survived, without even realizing what happened.

Side note: anyone who wants fanfiction ideas or general story ideas, let me know because my mind cycles between 10 and 15 different ideas a week.

Edit: Changed it from a challenge to a request, thansk bea for pointing that out to me