Tried it on one of my old pixiv works, there are some inconsistency and weird artifact, but overall very impressive.

Prompt:
Perspective view from a man. the man is fucking a women on a desk, he grabs her arms holding her in place. The penis inside her cut open belly moving back and forth in rhythm with his hip movement. The exposed intestines squirms. The women is lying on desk motionlessly, her neck cut open, head separated from body. Her expression remain shocked and wide eyes, her head tilted sideway.

Gen link:
https://grok.com/imagine/post/d8c21c9a-4848-4df7-a7c8-0735856168fa?source=post-page&platform=web