Jake was seriously questioning his mind on the subject, but something told him he wanted an udder of a cow. Why though? Cows are female. Would the program work that way? Of course, there was the fact that you can change gender so that argument blew by quickly. But still, why a cow's udder?
Could he actually desire some sexual tendencies from this? Would milking him make himself feel good? He was in a state to where he could potentially be questioning his sexuality. Nevertheless, his curiosity got the best of him, and he typed in "cow udder". Unwilling to throw away perfectly good clothes, Jake took his jeans off. He would keep his briefs on unless the changes were too much for them.
After looking over the tag boxes, making sure his settings were correct, he hit enter.
A second later, he had felt his gut rumble, as if he haven't eaten in a while. Maybe that was it. He was just hungry. Not the case though as he felt throbbing under his groin. A few seconds in, he sees pink blotches of flesh spreading from his groin area. The throbbing intensified as his groin started swelling up. It was that moment Jake knew his briefs couldn't take it so he removed them, placing them in between his feet.
As he pulled his underwear down he saw what had become an enormous swelling blob of pink flesh growing slightly above his duck. He had thought it was weird his genitals didn't disappear, but maybe it was for the best so he had been able to urinate. From there however, the pink flesh that covered his groin had started producing lumps. Jake had touched one of them, as it grew into a full teat. His whole boys was shivering with excitement. He moaned with pleasure, rubbing his newly formed flesh and tears as they continue to grow. His udder was now the size of a basketball, and with one final touch to the change, Jake had his udder will always be full of milk, always ready to squeeze some out when he or anyone else desired. That moment was when his udder ballooned out, inflating himself full of milk. He squeezed one of his teats as it a happened and nearly screamed in satisfaction.
With his transformation complete, Jake sat up looking at his udder setting plumply in his lap. Playing with it and giving it a few slaps to make sure you really feel it. And it felt so good. He went from questioning why he had wanted this, to enjoying the moment.
Heading over to the bathroom with a bucket from his supply closet, Jake got busy producing.