Up-skirt shot at party with legs and shorts

You’re at some kind of party or gathering, and the camera is low, pointed at people’s legs and lower bodies. A woman in a blue patterned skirt is walking past, her legs visible. Other people are around her — a guy in a white shirt and shorts, someone in a dark dress. The floor is tiled, and you can see stairs behind them. It’s a bit blurry, like the camera was moving. The vibe is casual, people are just walking around, chatting, maybe dancing. You can see the back of people’s heads and shoulders, but the focus is on what’s below the waist. The lighting is kind of dim, maybe from overhead bulbs. It’s not a staged shot — it’s just someone’s phone or camera capturing a moment as they move through the crowd. You can hear some muffled voices and maybe music in the background. The website watermark says '100Upskirts.com', so it’s clearly meant to show what’s under skirts or shorts in public places.