Warm It Up
I discovered this sweet technique from my brother several years ago. It's best to wait until everyone is gone. Drop you pants or get naked. Then take a hair dryer set on low heat and low air speed and blow the warm air over your package for a few minutes, apply lube and continue to blow the hot air on your cock and nuts while you jack. The heat will greatly sensatize your genitals and will result in a huge orgasm.