IENF-187 - Street hunting in Shinjuku, the pure high school girl who went crazy after seeing my 18cm monster

I stopped a naive high school girl on the streets of Shinjuku and told her I was struggling with my huge size. She was shy at first, but once she saw it, her curiosity took over. After getting a taste of it, she got bolder and bolder, eventually begging me to put it inside her. What happens next?