There are two terms that get confused a lot, so we’d like to take a second to clear up some confusion. Transgender vs transsexual. Many people think they are the same thing. But they aren’t. Transgender is a broader term (whereas transsexual is an older medical term - still preferred by some) used to describe people who identify as a gender different to the one they were assigned to at birth. To make it more clear, this is more a matter of identity than sexuality. Gender identity is determined by more than just your physiology. Culture, behavior, activities and other societal aspects all contribute to gender identity. Many transgender men and women will take hormones or undergo surgery to transition into their identity. Other cannot or will not do this. The long and the short of it is, be respectful and call people what they ask you to call them. There are stacks upon stack of research papers, books, films, art, theater productions, magazines that go into the topic more fully. So if you’re interested keep reading, if not then simply honor people’s requests.
Locker rooms are a great setting for pornos, but the logistics of banging in one are pretty complicated in real life. First of all, you should probably be prepared to stand: think about the selection of surfaces at your disposal. Not great. And then, there is the challenge of finding a locker room empty enough, and getting it to stay that way long enough. You might be an exhibitionist who doesn't mind an accidental audience, but most schools or private gyms are going to mind, and laws about public behavior may apply. And finally, of course, there is the problem of rigid gender separation in most facilities. This is only a problem for straight people, of course, and it might, on the other hand, lay the groundwork for some very interesting same-gender experiences. Locker rooms might also be happy places for voyeurs, but make sure everything is fully consensual! More on getting publicly freaky here: Exhibitionism, Outdoor Sex, Quickies