Despite the claims by those penis extender ads, they did not work. If they did, we would all be walking around with one foot long dongs. The closest the science came to penis enlargement was through plastic surgery, but it has never become popular because it is still considered controversial, has safety issues, and way too costly. Most of it is offered only in Asia because American surgeons refuse to embrace it.
This time Asians (why are these people obsessed with cock size?) may have found an easy solution for men with small cocks. According to work published by Korean scientists in the Journal of Sexual Medicine, a dermal filler Restylane, when injected into the penis directly increased the circumference (or girth) by about 1.5 inches on 4 cm. So it is not getting longer but more fuller making the woman feel more stuffed.
Those of you who may have never heard of Restylane it is a gel like substance that is often pumped into the face or lips to make them look fuller.