Nasty stepsister is punishing her stepbrother

Charlie didn't learn from last time when his stepsister returned from mountain hike after 14 days and he told her she smells and her feet smell the worst of all. She got mad and made him smell her feet and dirty socks and shoes. Today Charlie came home to watch the hockey game but his stepsister also returned a bit earlier from a gym and she is watching TV as well. Charlie sits next to her but immediately smells her feet. "Your feet smell horrible, sis!" he says but what he apparently forgot is how badly his stepsister reacts to accusations of smelly feet. She starts to foot hold back him and makes him smell her socks on her feet. He's impotent since is a bit of a big girl and she's stronger then him. She sits on him and he can't even move. He just have to smell her feet if he wants to breathe. is having fun but Charlie is in agony - he can't even take a deep breath because feet smell so bad!