It would appear that the boy needs some throat training (I find that hard to believe). Titanius takes him through 11 levels of training, the penultimate seems to involve handcuffs and some kind of gag. Anyway, nature takes its course at level 11: throat breeding. What happens when your mouth is full of fat cock and he fires a deluge of spunk at the same time? Clearly the cum hits the tonsils and the gag reflex kicks in to eject the jizz from his mouth. He manages to swallow some, but I bet he wanted to swallow the lot. Better luck next time.