I don't like a "quick fix" that is just for the event. Tonics have been handed down that over time enrich blood and strengthen the kidney-adrenal gland system so your body is strong in the genitourinary system. It is not so simple because everybody has their own unique imbalances. (yin and yang imbalances) Too much heat in your system could make you spill your semen too quickly. And really it is great to keep on going for a very long time to enjoy "her show" in so many ways before you give it up. Too yin "too cold" can almost ensure a weak or no erection and plenty of clear white all too often urination. But most of the time a basic formula of "You Gui Wan" will keep you strong and ready. It is a yang tonic and helps with back pain and is warm in nature. But the problem in the States is getting a quality formula. In China and Asian countries the pills are rolled and gummy by an herbalist. very nutritious. "Jin gu shen qi wan" is an altered form of "you gui wan" used if you have prostate and slow urine issues. And there are many others. If you know a decent Chinese herbalist who is good at pulse diagnosis, he can balance the system to bring you to better overall health and then add some herbs for strong sexual function. sometimes it is miraculous. sometimes it is a bit slower because you have to first clear the pathways so regeneration can occur. It is best to be always strong and always ready. Eat plenty of oatmeal, brown rice, buckwheat, wheat, fava beans, chick peas, black beans (any bean really except soy and mung which are cold but mung is a good liver cleanser) anchovies, quail eggs, pomegranate. Boiled leaves of "yin yang huo" can be potent beyond imagination but mostly not good with prostate issues. Remember that if whatever you use is quickly enlarging your penis, it is also enlarging the supporting cast which is the prostate and testes, et cetera. But that holds true mostly for concentrated herbs and pills and not food. Food works slower but is extremely safe. when choosing food and especially with grains and beans, try to choose organic non-GMO because grains and beans are seeds similar to semen and they have the power of reproduction but GMO's are completely impotent, without the power or re-germination.