If anyone else had walked back in during this moment he might have been left alone. But Constance sees a heck of an opportunity and takes it! She has too much fun having him all to Herself, locking on very powerful scissorholds in addition to Her trademark facesitting.
What drives him really nuts (pun intended) are the unexpected smacks to the balls. As a matter of fact, that's how the video ends! It's even visible in the preview the way Constance smacks him so hard down there he flips to the side in response!
