Ben thought for a moment and, with a smirk, decided to click on the "Extra Extra Extra Large Elephant" option. The warm sensation of transformation surged in his body again, this time in his crotch. At first it felt like he was getting a massive erection, but when he unzipped his pants to watch, he saw that his penis was still completely soft. It was quickly growing longer but what was really amazing was how thick it was growing. In just a few seconds, it had bulged thicker than Ben's leg.
Ben was fascinated as he watched the skin of his penis turn grey and leathery. The sensations coming from his penis were unlike anything he had ever felt before. Ben began to become aware of muscles he had never had in his penis. He could move his penis voluntarily, he watched as it moved back and forth of his own will. He shuddered as it began to grow erect, while continuing to enlarge bigger and bigger than ever. Ben began to jack off as the sensations reached a level of pleasure he hadn't known was possible. His eyes bulged as his penis reached two feet in length and actually started to grow faster. It started to take on an s-shaped, curved appearance as it reached three feet in length.
He continued to stroke his massive member that had now stopped growing, feeling unbelievable pleasure, magnified by its huge size. Ben began to feel aware that the warm feeling of transformation was spreading from the base of his penis. He opened his eyes and was shocked to see that the skin around his penis was beginning to turn grey and leathery like the skin of his elephant dick. His balls began to feel odd and he gasped as they began to pull back into his body. Ben felt them moving up into his body and come to a stop near his kidneys. He felt a peculiar feeling of stretching at his tailbone; looking around he saw a slender grey tail pulling itself out of his spine. The elephant skin had spread all over his stomach and was now spreading to his legs. In addition to the skin, his legs were quickly growing thicker and bulkier. Ben's feet swelled and reshaped; his toes fused and bulged.
Ben was somewhat frightened. He had never expected the program to do this, he just wanted a massive dick. Had something within the program gone wrong? Would he turn completely into an elephant? But the feelings of transformation coming from his body and new penis were overwhelming his sense of reason. Looking down at his hand, still stroking his massive elephant cock, he noticed it was undergoing a transformation similar to his feet. They fused and morphed the way his feet had, but the end result was not as extreme. He now had three, large, bulky working fingers.
The leathery, grey skin was now all over Ben's body, except for his head, toward which it was now growing. Looking at his rapidly changing body in a nearby mirror, Ben saw that his entire body was becoming thicker and more elephantine. His legs bulged wider than before, his arms thickened and stretched, and his mid-section swelled. He noticed that during his transformation, he had grown at least two feet taller; he was now over eight-feet tall and still growing. But now, the strangest and most amazing part of his transformation was beginning.
The warm feeling had reached his face, which was beginning to swell and elongate. Ben's mouth was forced upon as his jaw began to enlarge; his incisors began to grow bigger, stretching out of his mouth and widening to form two huge tusks. They continued to grow reaching five feet in length and began weigh heavily on Ben's still partially human neck, which, luckily for him, was beginning to thicken tremendously with knots of muscle. Ben's reforming jaw was pushing his nose more and more upward, and his nose was undergoing its own amazing transformation. It began to flatten on his face, somewhat resembling a pig's nose, then began to grow, stretching into an elephant trunk. Ben became aware of the new muscles in his developing trunk, testing them out gingerly. Suddenly, his ears began to feel hot and they began to extend out from his head rapidly. He moved them back and forth instictively as he had seen elephants do. His transformation nearly complete, the human hair on his head retracted into his scalp as the grey elephant skin finally covered the remainder of his body.
The pleasure from his massive elephant penis had reached a fever pitch, and despite the apprehension he felt, he began to pump his cock furiously. Ben's entire body shuddered as he felt the erection well up in him and finally, he came. Almost involuntarily, he let out a thundering elephant trumpet, the sound of which shook the floor boards. A massive amount of semen came out of his newly formed penis, spraying the walls. Finally, the mind-blowing pleasure subsided and his giant dick began to soften. Amazed, he watched as it retracted all the way into his body, among the folds of skin. He could still feel it inside his body, but it had retracted fully.
He looked up at the mirror and saw what he had become: A massive, nine-foot tall anthropomorphic elephant.