Sister help me! My hands are burned and I can't jerk

After having an accident and being left with his hands unused for a few months, this kid wants to satisfy himself by making a straw to unload the stress but his disability does not allow it, so to solve the problem he asks his older sister to help him do it . Like every older sister, she wants her little brother not to suffer, so she grabs bravery and agrees to make a straw for her little brother so that he unloads his balls; while the sow is doing it, he feels that he likes it, little by little he opens his mind more to the idea of making incest with his little brother, so after a while of being there milking his brother's cock, he takes courage and He gives a blowjob until the boy runs over his tits.