Nuclear Explosion

I woke up, stretched, and yawned. I looked out the window. There was rain spattering the window panes. The kind of day I loved. I walked downstairs to get some food. "Hey dad!" I called. "Dad?" silence followed. "Strange..." I said. Slightly paranoid, I barged into my little sister's room. "Lilly!?" I nearly screeched. No one there. I skidded into my little brother's room. "Nathan!???" I gasped. Silence... but oddly enough, American Idiot was blaring from his stereo. I tripped down the stairs, taking a face plant at the bottom. Then I got up and ran outside. "Oh... my... God..." I said, staring at a gaping hole in the house across the street from mine. "Hello? Anyone here?" I yelled, my words echoing back to me. "I'm all alone." I said in a small voice. Then a light went ob behind my eyes. "Maybe..." Then I ran off to my verrry best friend John's house
"John!" I called to his balcony. "Please tell me you're alive!" I started crying. "Not John too..." I cried. "Amy? Is that really you?" He rasped. "John! You're alive!" I screamed. I jumped up into his arms and nestled my head on his shoulder. "Oh, it was terrible, John! I woke up and Dad wasn't there and neither was Nathan or Lilly and I saw that crater..." What happened?" I asked, lifting my head up. "Nuclear bomb. It killed everyone but us." He said, evident pain in his eyes. "How-how is that?" I shuddered, knowing now that my best girl friend Ana was... gone. "In the Cold War, they made 'super humans' who had an immunity to nuclear weapons. I-I think we're the offspring of super humans." He whispered. "Then how come our parents didn't survive the bomb?" I asked. "Well, there were a lot of bugs with the super humans. For one, most of them died before they had a chance to procreate. For another... the 'super' gene wore off after about twenty years after it was put into their DNA. And after that wore off their whole genetic makeup unraveled. Then they died a long, hard, painful death." He said a grim expression on his face. "Will that happen to us?" I squeaked. I did the math in my head. Sixteen now... that means I only have four more years to live. "I love you." I said. " I love you and I always have." Tears welled up in my eyes. He wiped them away and said. "I love you too, Amy."
Nine years later, Amy handed John another baby. With their unusual genetic makeup, Amy was able to give birth quickly and easily, and the babies grew quickly but once they reached the age of seven their growing stopped. So Amy had to wait nine days instead of nine months like most other mothers before she gave birth. And because Amy and John had a very sexually fulfilling well, sex life. So theyhad about nintey kids. "We are so going to repopulate the earth." Amy said, shaking. Suddenly, her heart started racung, her breathing erratic. Then she collapsed, dead. John bent over her still, lifeless body and kissed her one last time. "Amy." He whispered, tracing over all of her stone features.