This wasn't a one-time mistake, it was deliberate. If you look through the past few months of Kim in paparazzi pictures, you'll see that very visible knicker line again and again. She isn't the only one encouraging the death of the VPL—the designer of the moment, Jacquemus, included a blue sheer dress in his S/S 18 collection worn with a pair of simple white cotton briefs visible underneath.
"I think that women worry too much about the VPL," Sarah Shotton, creative director of Agent Provocateur, said to Who What Wear in 2016. "I actually think that wearing a knicker where you can see it is actually really sexy. My old boss, Jo, and I, we used to sit and talk about the lumps that you get sometimes over a knicker line and that VPL, and we would talk about how sexy it is and how you shouldn't worry too much about it. I still sometimes wear a G-string, and my bum isn't good enough for a G-string. If you're wearing a tight skirt, you'll wear a thong, but I think you should embrace [the VPL] more."