Firstly, be aware of the values you uphold. If you firmly believe in loyalty and healthy relationships, you'll be more likely to reject such stories. Also, focus on consuming positive and educational media. For example, read classic literature that promotes positive values. Surround yourself with positive people who also have good values and they can help you stay away from such negative influences.
One way is to stay away from sources that might contain such content. Don't seek out books, movies or websites that are known for this type of inappropriate material.
To avoid the influence of cheating erotic stories, you need to have a strong sense of self - control and moral compass. Limit your exposure to media that may contain such content. You can choose to engage in more positive hobbies like sports, art or reading positive self - help books. Also, have in - depth discussions about relationships and values with family and friends. This can help you better understand the importance of fidelity and respect in relationships, and thus be less likely to be influenced by inappropriate stories.