As you try to deep throat the monster cock you suddenly feel Brents hand on the back of your head. You are unable to resist as he forces it deeper and deeper. You don't mind volunteering worship to a cock this massive but with your new power, why should you be forced to do anything? You take a hand off his bubble butt and hurridly feel for the wand.
Soon you can feel explode with size and strength. The feeling is exhilarating as you transform from a regular teenager to a muscle hulk, just a little larger then Brent. It is disorientating how much more space you now take up. Your clothes are tatters and you feel the warm changing room air on your new bulk.
You grab Brents wrist and pull his cock out of your throat. You rise, standing face to face and look into his eyes. This close you can feel his pecs pushing up against yours. Your erect thick cock brushes against his causing it to twitch with excitment.