hard BDSM Training scene for a Willing Anal Submissive

The scene opens with the submissive already bound and presented. The dominant wastes no time, starting with a rough fingering to test her readiness. She's then bent over for a deep, nonstop anal pounding. The pace is controlled and punishing, with clear focus on her reactions. There's a shift to a different position, allowing for even deeper penetration. The training ends in a forced squirting orgasm while she's still being penetrated. It's a simple, no-frills BDSM scene built around anal endurance and control. The entire scene is about the process, the submission, and pushing those specific limits.