When I was 12 years old and flexible I was able to suck my own dick as strange as it sounds. I hit puberty around 10 and started masturbating frequently. One weekend I just said to myself, "why not try to suck your own dick?" It took a couple of tries, but there I was, sucking my own dick-matter of fact, it tastes like pussy. I was never able to suck myself off though, the immeasurable feat of contortion restricted my breathing pattern and made it uncomfortable. I gave up rather easily and haven't tried it again since.