This porn video tag, "big-pregnant-belly," refers to scenes featuring a woman with a large, noticeably pregnant belly. The term "big" emphasizes the size of her belly, often implying that it is significantly protruding or distended due to her advanced stage of pregnancy. These scenes may involve sexual interactions between the pregnant woman and one or more partners, and are designed for adult audiences who enjoy pregnant women in their erotic content. It should be noted that this category may not always be culturally appropriate or acceptable to all viewers.