Two Pairs of Pantyhose
Put on a pair of pantyhose-it would be better if you wear a size or two bigger than you normally wear. And do not use a pair with any support. It would also help if you are aroused by wearing pantyhose. Take the second pair and gently wrap a leg around your pantyhose-covered erection. Then patiently and slowly start pulling back and forth on the second pair as if you were sawing. It will take a little while but eventually you will get into a groove and find your zone and then just follow your instinct and soon you will have two very wet pairs of pantyhose.