Girl in black thong showing off her ass

The girl is sitting on a black chair with her back to the camera, showing off her bare ass. She's wearing a black thong that's barely there. Her left cheek has a red mark, maybe from a slap or something. The room behind her has blue walls and white curtains pulled to the sides. There's a shelf with candles on the left. She's leaning forward slightly, one hand resting on the chair. Her nails are painted black. The lighting is bright, making her skin look smooth. She doesn't seem to be doing anything else — just posing. The vibe is casual, like she's showing off for someone. No one else is in the frame. It's a simple, straightforward shot focused entirely on her body and the mark on her cheek.