Painting an Artwork of his Post Orgasm Torture suffering makes her Horny, and she Gets Herself Off

Originally, the MILF only wanted to draw an artwork of her tied-up male slave suffering after a post-orgasm. But today, that alone doesn't feel like enough. Her pussy gets wetter and wetter as she watches him get closer and closer to busting his load. Knowing that the milking machine won't stop stimulating him even after orgasm is kind of a "go" for her, and she immediately starts masturbating her clit with a vibrator to get herself off while the cock milking machine continues until she is finished.