We've REALLY been into throat/gag training lately. Serena can take more in her throat and hold off on gagging better than every before. I can now stick my fingers in as deep as physically possible and hold them still for a moment! The ends of my fingers actually feel the opening of her larynx, and have to be careful to move over it and go into her esophagus. It's wild! Originally we had the camera rolling for the cum collection video, but why waste an opportunity to show off Serena's new talent?