Holding your penis, firmly press the skin back into your body by placing both thumbs, nails touching, over the shaft and your remaining fingers underneath for support. Be sure not to cut off circulation to the penis. Hold for 10 seconds then relax and repeat. You want to maintain a continuous pump action. The farther back the penis is held, the better your results will be. Repeat once or twice daily for five minutes. This exercise can also be performed while semi-erect.
Stretching with weights. Weights or stretching exercises won't bulk up your penis -- it's not a muscle. But hanging weights off your flaccid penis may stretch it a bit, O'Leary says. The catch is that it requires a freakish degree of dedication. "You might have to wear a weight strapped to your penis eight hours a day for six months," says O'Leary. At the end of it, you could be lucky enough to gain about half an inch. Risks include tearing of the tissue, burst blood vessels, and other problems.