What is the ruling on looking into matters of sexual intercourse for an unmarried person, sometimes accompanied by the emission of fluid from the private parts?

It is good to learn about the Shariah rulings related to sexual matters, as long as it is not for the purpose of arousing desire. In the latter case, it must be avoided. The fluid that often exits when reading such material is usually madhy (pre-seminal fluid), and it must be purified.