Expose the erection. manipulate the penis. Anoint the glans with slippery greasy substances to facilitate its moist slickness. Skin back the hefty foreskin and wave the smooth head in the air. Manipulate the large flared-out piss slit with greasy fingers and other smooth instruments. Tightly grasp the shaft and move the hands up and down… up and down… up and down. Smell the hairy muskiness of heavy and full testicles. Feel the sperm tanks swing back and forth… back and forth. Tongue the veins, moving them back and forth under the skin. See it respond as an independent animal. Pulsing along with the heart. The heart pumping the blood causing the steady jump… jump… jump of the erection.