After Ryan exploded on Zachary's face and eyelashes we stopped to clean up to prepare for the next experiment. I asked Zach to remove his clothes so that Ryan could get a closer look of a well circumcised penis. 
 
I coached Ryan to kneel and insert Zach's flacid penis into his mouth so that he could see the difference once it's hard and erect. I kinda think Ryan liked sucking Zach's dick so much that he took Zach's load on his tongue and swallowed it. It's a tough call...let's just say both boys enjoyed sucking dick whether it was cut or uncut.