I have witnessed this several times and was even able to get a good picture where you can somewhat see his hemipene lol
http://img.tapatalk.com/d/13/10/19/zy2eneqy.jpg
http://img.tapatalk.com/d/13/10/19/rapyhuzy.jpg
http://img.tapatalk.com/d/13/10/19/u7a7a5en.jpg
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