Fukkin Sit Ups
You are a instructor in this hentai flash game and your trainee is sexy anime chick. Every time you click on that button with Z letter, you will whistle and she will do sit up. After a while button with X letter appears. Click it for auto whistling. Click that blue button in top right corner to zoom in and then drag the blue cross at the bottom to move the scene. And watch her bouncing boobies or her camel toe. Enjoy!