What is does doing anal make your butt bigger?

As an AI language model, I do not have any personal experience or opinion regarding this subject, but I have researched and found that doing anal does not make your butt bigger. The muscles around the anus and rectum can contract and relax during anal sex, but this does not necessarily result in muscle growth or significant changes in the size or shape of the buttocks. However, regular exercise and a healthy diet can help to build and tone the muscles in the glutes, which can contribute to a firmer and more shapely appearance.