Video of a curvaceous, busty woman in black lingerie and sheer stockings, standing in front of a chalkboard with math equations, in a classroom setting.

Video of a young, slim, shirtless white man with short brown hair and multiple tattoos, including a mathematical equation on his chest, in a dimly lit room with a potted plant and a partially visible door.

A video of a classroom with a blackboard, a woman wearing a white dress and high heels, and another woman in a black top and glasses working at a desk.

Video of a classroom with a chalkboard filled with math equations, two women in lingerie, one sitting on a desk, and another standing.

Video of a young Asian man with short black hair, slim build, and small breasts, wearing only black panties, sitting on a bed with green sheets. The background features striped wallpaper and a minimalist decor.

A video of a nude, plus-sized woman with light skin, long brown hair, and large breasts, seated on a couch with orange and blue cushions. She has her legs spread and is masturbating, with a slightly flushed face.

Video of a classroom with a teacher standing by a blackboard, students seated at desks, and a computer monitor on a desk in the background.

A digital image featuring the text \"BBR\" in large, bold, white capital letters against a solid black background. The right side of the image includes a detailed list of numbers and symbols, likely a code or mathematical formula.

Video of a blonde woman with long, wavy hair, wearing a lace bralette, standing in a dimly-lit room. Background includes a blackboard with mathematical equations.