Jean Porn Videos
The term "jean" in the context of a porn video tag is most likely referring to denim clothing, specifically jeans. In adult content, people often wear various types of clothing during scenes, and denim clothing like jeans can be quite popular for its durability and comfort. Therefore, this tag may be used to indicate that some or all of the participants in the scene are wearing jeans. Remember that this is a description of the porn video tag's meaning and not a translation of another language.
