In this new sex lesson, Silvia debuts as teacher, showing us a curious technique which she has named Clamp. This so visual technique, allows to give pleasure in a circular way for a good cock as Domingo Ojea´s one, a candidate from the castings we make in Altporn4u. The Clamp is a special complement to do a good handjob, so Silvia will follow this motion with another techniques that appears in another Sex Lessons, til´ reaching Domingo to a total climax