Write a story about a woman named NAME_1 and her boyfriend NAME_2. She is dominant and talks in a mean way to him sometimes. One evening in bed she suddenly undresses and starts to defecate all over NAME_2's crotch. Then she pinned him down and started to make him fuck her in that mess. She commands him to defecate as well. He does and they kept fucking with their shit all over them until orgasm. Use direct speech.