Giant growth joi & humiliation

Description: Your stepbrother catches you jerking off while sniffing his dirty gym gear and looking at his photos. he begins to humiliate you for being a beta. it is in your dna to be a loser, just like it is in an alphas to be so much more. your stepbrother begins to grow giant right in front of you. you are only allowed to jerk off from now on when he gives you permission. you want to jerk off while sniffing his dirty gym gear, now you have no choice!