The more it hurts, the more helpless he becomes, and the more clearly he confirms that he is completely dominated
The white flat shoes start with light kicks and gradually get heavier. He goes from barely enduring it to later actively pushing his ass up to beg for heavier pain.
白色平底鞋从轻踢开始,一步步加重。他从勉强忍住,到后来主动把屁股送上来求更重的痛。
越疼越硬,越疼越乖。