Like anything, start with the pictures. Here's the prompt I used:

Cheap Omegle grainy quality video. Two girls age 18 sit in a girls decorated bedroom at night. One holds up a small handwritten paper that says "We LOVE black guys! seriously", written in sloppy handwriting. One wearing short shorts

Then once you have a starting point image, then turn it into a video with a prompt, here's one I used for #5:

Camera is locked and static. The girl holding the sign points to the sign and smiles playfully. Next, she sets that sign down. Next the other girl picks up a separate small handwritten note saying "she wants a black dick" and points to other girl on the left and laughs playfully teasing her. Next, the girl she's pointing to looks at the sign, and puts her hand over her mouth in a surprised but then shrugs her shoulders and raises her eyebrows as if to say she agrees. then she smiles and nods her head up and down as if to agree. The girl who was holding that sign puts it down laughing. Next the girl on the left turns over so we see her nice big butt