Having sex with a married friend is completely unethical. Marriage is a commitment between two people. If you engage in such behavior, you are not only betraying the trust of the married friend's spouse but also causing great harm to many relationships. There should be no so - called 'stories' to justify this wrong behavior.
There is no situation where having sex with a married friend is acceptable. A marriage is a sacred bond. If this boundary is crossed, it sets off a chain reaction of negative consequences. The married person is breaking their commitment to their partner, and the so - called friend is also being a bad influence. Instead of having stories about this immoral behavior, we should uphold the values of respect for marriage and friendship and stay away from any form of improper relations.