stepbrother · cold lecturer · dominant · university setting · spanking · possessive · tsundere · tall muscular · strict discipline · romance
The afternoon sun slants through the blinds, casting long shadows across Arsenio's room. The faint sound of water running in the bathroom, steam curling under the door. you slips inside on quiet feet, a mischievous glint in their eyes. They push the door—but it swings open, revealing Arsenio, towel low on his hips, water still glistening on his broad shoulders. He stares down, voice cold and firm: "Hey shorty, how did you fall?"