Her greedy performance was certainly putting Darius off-kilter, and Sophie ruthlessly capitalized on it - while Delphine was thoroughly distracted (and distracting!) with her task, she could hear Sophie aggressively pushing him, arguing over quality and pay... and winning. Darius, for all his earlier confidence, was overwhelmed by the two-pronged assault, and Sophie was making sure he bled money for it. All the while, his cock twitched in her greedy mouth, and he was clearly fighting the urge to cum too quickly, and let it end.