La figliastra ha un brutto voto e il patrigno si è fatto studiare

One day teen stepdaughter badly did her homework. And she got a bad mark in the university. She did not want to show it to her stepdaddy. But he was caring about her very much and always checked her grades. He got disappointed and angry. He decided to show his skinny stepdaughter how to organize the learning process. This time he took control over her studies so that she does her homework responsibly and attentively. And it seems that his method worked...