Giantess Clarissa wanted to masturbate and the best way for her to do it so as to both have fun at the expense of this guy and also teach him a lesson was to make sure that she used him as a dildo. She inserted him in to her pussy and had fun rubbing her clit. It was fun for her but he was choking inside of her pussy. She did not care.
This guy was full of himself and this mistress did not like it. He did not know that she was a giantess and she could dominate him in a way he had never been before. That is what she did to him as she forced him to endure the pain of her crushing. She crushed him into a tiny man after which she inserted him in her pussy and let him drown in her discharge.