The pretty girl next door is a pervert and the ending

I was bullied in high school and I became a failure and dreaded school from that point on. The person who bullied me was a girl, who I will never forget humiliated me. One day, my father remarried and my remarried partner's stepson turned out to be the person who had bullied me before. Then the opportunity for revenge came to me, this fate said I had to do something. And then I tried to lock her in the room and retaliate with my big cock.