Knees

As Cindy exits you turn back towards Zack, you have the gym all for you.

He is still hiperventilating to control the pain when you place your small hands on his strong shoulders, almost checht to chest. In the past everytime a girl and a boy stood like this in this place they the were dancing in a Prom Night or another type of ball. Now you were ready to dance with his balls but in a different way.

Looking down your breasts blocked his view so the forst time you did not use his shoulders and simply lifted your knee fast into his nuts. His surpised face was priceless. Now that he knew what was coming you pulled down on his shoulders to add **** to your knee flying up for the second time. This blow was solid, compressing his balls up against his body. The third knee brashed his thigh loosing some momentum but he could not move at all and you don't failed any more. You switch knees and keep going. At some pint he starts beging for your mercy but you are determined to get an A plus in this too.

Right wehn it's time the classroom door opens and Zoey walks in. All her classmates eyes and round with surprise when they see Naked Zack being led by you. Cindy winks at you when she sees you are the first girl in the school to follow her example of leading boys withour using a leash.

When you walk to your place everybody can see something changed btween you and Zack. Maybe it's the defeat in his eyes or the fact that he does not even protest your small hand squeezing his testicles.

When the day is over Cindy calls you appart and invites you to a party