Tan-lines Porn Videos

"Tan-lines" in a porn video tag refers to the visible demarcation on a person's skin where their swimwear or clothing leaves an imprint due to uneven tanning. This often occurs when someone is wearing a two-piece bathing suit, for instance, and has spent time sunbathing, causing their skin to darken differently depending on which areas were exposed to the sun. In adult content context, tan lines can be considered as an aesthetic detail that adds visual interest or can be used to emphasize particular body parts by contrast.