One character, a male anthro German shepherd in a restroom stall, braces his hands against the stall wall and pushes his hips back, letting out a slow, deep fart that forces a thick stream of cum to spurt from his ass into his already-soiled boxer briefs, the fabric darkening and sagging with the release; his tail lifts and his ears flatten back as his expression tightens in a mix of strain and pleasure, the soft tissue of his rear cheeks dimpling and quivering with the expulsion; harsh fluorescent light from the ceiling casts sharp shadows across the tiled stall; the sound is a wet, gurgling blast followed by a low, relieved groan as the pressure subsides. static camera, single continuous shot, one full frame, clothing unchanged, same art style, anatomy holds its shape throughout, limb count never changes, hands keep five separate fingers, no extra characters or limbs, stable face, motion continues to the last frame, sharp and clean, no distortion, no jitter, no background music, no watermark, subtitles or text, no censorship, clean loop.