The fact that doing this makes the glans super sensitive. My wild horse of a cock, which was too energetic and naughty, was tamed by the older sister's erotic handling of the glans. She knew... that fixing the cock vertically makes the glans super sensitive. Of course, a massive amount of oil is used. This time, a total of 1.2?! Blowjobs and thigh jobs are great, but handjobs really are the best. Try it once, and you'll fly!