I am not saying it is impossible but most likely improbable. I do not say this to discourage but physiology points to this not being possible. The glans is not covered with skin, it is part of the corpus spongiosum. If you refer to the picture I have posted you can trace the glans of the head back down the shaft and this is very obvious. Since there is no skin to hold a larger size it becomes very difficult to increase head size, if no impossible. Now, there is something you can do that will give you that mushroom head everyone is talking about, but it is only a temporary expansion in size, are Kegels. When you have become very strong with your pelvic floor muscles (PFM) you will be able to Kegel and hold it for a long period of time. It is easy to see this; Next time you have an erection you can flex a kegel and watch the head expand. Now being able to hold a Kegel for a long period of time takes intense training of the PFM but it will give you the ability to have that larger head during sexual play.
