I inserted my semi-erect penis into the sheath at the beginning, I felt the back-and-forth, and then, when you walked erect, comings and goings are stopped her. I told myself that this was not normal, but hey, I kept manually, always with the robotic mouth. Comings and goings were unleashed from time to time, but they were very rare. After 15 minutes, putting my hand on the engine, I noticed that it was burning. I stopped the machine and pulled my penis sheath, and found that there was more the size of my sex, an air pocket that had formed.
Perhaps most suitable item to more "small sizes"?