The porn video tag "witcher-3-yennefer" refers to a scene or content that is inspired by the popular video game, "The Witcher 3: Wild Hunt." Yennefer is a character from this game who is a powerful sorceress. This tag indicates that the content features sexual situations involving Yennefer from "The Witcher 3" universe, and can include depictions of her in various fantastical or erotic scenarios. Note: This description assumes the reader is familiar with the video game series and its characters