Locked In The Stocks - Brush Rollers On Bound Muscle Jocks Bare Soles (Anime Bara, 20 Scenes)

They all volunteered for the endurance challenge, and every one of them regretted it the second the lid came down. Ankles clamped into heavy wooden foot stocks, wrists strapped back, bare soles held still and completely exposed with nowhere to pull away to. Then the machines start up - motorised bristle rollers and spinning brush cylinders driven straight into their arches, worked up under the heels and raked between the toes, bristles blurring as they spin and never once letting off the skin. The jocks buck against the stocks, strain, and laugh until they can barely get a breath, and the rollers just keep going. Hand-drawn 2D anime bara animation - thick line art, flat cel shading, big muscular young men, and no real people anywhere. Twenty scenes, different rooms, different angles, same helpless soles.