Although Clay would normally be content with his 2 foot dick, he was amused at the prospect of making Adam even more disproportionate. His own dick getting bigger was just icing on the cock, er cake. He took the head of Adam's much-oversized member in his mouth, licking and sucking while working the shaft with his hands. Adam moaned from how good it felt.
Adam tried thinking about other things hoping that he could somehow stop himself from cumming. It was no use, though. There was so much stimulation overwhelming the rest of his diminutive body and Clay certainly knew how to handle a man's dick for maximum effect. Adam's balls tightened and he started to unload.
Clay took in Adam's hot seed swallowed it all. There was a lot more than before, but Clay hadn't thought about the impact. He soon felt the sensation that had washed over his groin before return in full force. He laid back and held his hands over his dick as it began to expand outward and upward. Clay laughed, "Isn't this awesome!?" He heard Adam begin to gasp and looked to see that Adam's cock was sharing in the experience, growing to match Clay's inch by inch.
Clay was so aroused by see the giant dicks. He started working his huge member. It had grown too tall for his to suck the head, but that was okay, he was planning on enjoying a cum shower in just a minute. He licked the part of his shaft that was in front of his mouth feeling the skin move across his lips as it continued to grow. He closed his eyes as the pleasure grew more and more intense.
Clay tried to hold off as long as possible, but finally decided to let go. He could feel the surge of cum as it rose up his cock and let out an intense moan. His seed shot out the head of his dick somewhere high above and Clay felt the thick, sticky, and warm goo fall back down and cover himself and everything in the vicinity. His hair, his chest, his shoulders, his legs, and especially his giant cock and balls were covered by the rain of jizm. The feeling was so incredible and he breathed heavy, enjoying the scent of his manliness that filled his nostrils.
Clay laid back and opened his eyes to see his handiwork.