The news alerts were very clear. The TG Virus would run its course in 24 hours, people just had to avoid sexual fluids. Most people over 35 were immune to the virus so when it ran through our school the teachers had the sense to send us all home. I was 16, pimply and often picked on by the other guys. When the virus hit me I became a tight little fox. My mom immediately grounded me until it was passed but as she was a nurse she had to go into the hospital to deal with the emergencies that had developed.
The only other guy in the house was my stepfather. I wanted to stay like this more than anything and when he saw me I knew from the way he turned red that I could seduce him. I waited till after dinner as he usually went to lie down after a good meal and watch TV from the bedroom.
I came in naked and began to undress him. He resisted a bit at first but he was getting really hard. I couldn’t look at him but I started bouncing up and down on his cock. He’s got really good stamina and he already gave me an orgasm but I’m not stopping until I’ve done what it takes to make this change real. Just a few more thrusts and I’ll be the hottest girl in school.