Jeff could do nothing but swim around in Bancho's balls. The warm pulsing of the flesh around him was soothing, but being a sperm was very dull. He had plenty of time to regret the foolishness of becoming food, and wonder how he had ended up where he was. As Bancho returned to his dog house and slept, Jeff gradually got used to the smell and taste of the fluid around him, and even grudgingly accepted this fate.
Fortunately, he was not going to have to stay a sperm long. When morning came, Bancho's owners came and took the dog away. Today he was scheduled to stud, and he was going to make his owners some very valuable german shepherd pedigree puppies.
Jeff has drifted off into daydreaming when he felt the walls around him pulse. A tingling passed through him, a leftover shudder of arousal. He has no idea what was going on, but outside Bancho had just been introduced to a cute dog named Trixie. When Bancho's cock entered the bitch, Jeff suddenly understood what was going on. Determination filled him, and he felt each thrust full him with vigor as the leftover personality of a sperm affected him.
Soon, Bancho howled with pleasure, and Jeff felt himself rush up through the dog's cock, released at last. He thought only of moving forward as he swam with all his might, not thinking of anything but the target. When he hit the egg, the pleasure overwhelmed him, an explosion of lust that completely shut off his mind and caused him to white out.
Time passed, and Trixie gradually became heavier. Jeff thought nothing for a long time, but gradually became aware of a pulsing heartbeat around him. He was somewhere red and foggy and warm, and he was so relaxed he could barely be bothered to think. Days and weeks passed as Jeff watched himself grow, limbs and organs forming. He looked down at his tiny paws and wiggled them slightly, marveling at his new limbs. He felt happy and giddy, and eager to be born for the first time. First time...right? He was a puppy...did he have a name?
The puppy struggled, feeling as though it should remember something. Almost nothing remained of Jeff, after reforming with Bancho's DNA, fusing with a dog egg, growing into a puppy. Eventually, he remembered something about being human, about being Jeff, but a strong part of him still felt that it was just a dream, and he was imagining the whole thing. He was just a puppy.
Three months passed, and Jeff formed completely into an alsation puppy, soft downy fur forming and organs working fully. With all the time that had passed, the leftover memories of Jeff were faint and indistinct. One day, he saw light ahead of him, and felt himself being pushed. He struggled and fought, but he slid forward, feeling air and coldness surround him. He fell, his eyes closed as he whined and wriggled. His protests calmed as he was licked gently, and he felt other wriggling forms around him.
Jeff eventually opened his eyes, long after his brothers and sisters were born alongside him. He wriggled and rolled a little, looking down at himself. His paws seemed too big and clumsy. They were a light clay-like brown, contrasting with the rest of him, which was a soft black. His ears flopped onto his face, and it was hard to move.
He did not bother to think of his old life for several days. He enjoyed the happiness and carefree thoughts of being a puppy as he pushed against his brothers and sisters, and sucked from Trixie. Everything felt surprising and awesome, and he was always excited by everything around him. His tail hardly ever stopped wagging.