Bodybuilding is about muscle development, the gluteus maximus is a muscle not separate from the rest of the body. Some people consider the glutes a sexual organ. IE: gay men, repressed gays, some women etc etc.. I do not see the gluteus maximus as a sexual organ therefore can look at a male or female buttock with no discomfort and can judge the muscle groups the same as any other muscle group located on the human body. Striated glutes is a great indicator of bodyfat levels, as bodyfat from this area is some of the most stubborn, and quite often the last to go. It is no different than Christmas tree development in the lower back, also an area where bodyfat hangs on till the last moment. I think if you are uncomfortable looking at buttocks, then that says a lot about you. I always find it funny how repressed gays find a way to come out of the closet, even when they consciously dont want to.