It was obvious to the viewers and the camera man that the model's clitoris was not in contact with anything (no stimulation) and, therefor, she struggled the entire time and never attained a real orgasm. It should have been pointed out to her, how to posture herself so her clitoris is in contact with vibration. It was painfully frustrating to watch. I see this happen all the time in Sybian videos because of the incompetent creeps and jerks that operate the sybian and do the filming. The viewer and the poor model seem to have been forgotten about.
Stimslut.