A man walked into his living room with a box in hand shipped to the man named Jake. Jake set down the box on the small brown coffee table and opened it up. He pulled out a set of protein shakes and set them down. "Chocolate protein shakes, guaranteed to give you muscle mass just by drinking them, or your money back guarantee." He said to himself. He already had his doubts, but there were many positive reviews for the product. There were so many positive reviews that there was no way it could all have been from bots.

Jake shook up the first bottle and then he opened it up. "Bleh. Smells like chocolate powder." He poked an eye inside the drink and noticed the liquid. "Well, down the hatch I suppose. If I die, nobody touch my stuff." He gulped down the bottle until he completely drained it. The size of the bottle was no more than 12 ounces, so it was little challenge to drink it all in one sitting.
Jake then tossed the bottle into a small trash near his chair and sat back. "I wonder how long it's supposed to take."

Just as Jake asked that question, his body rumbled. He felt parts of his body swell with muscle, and his eyes widened as he noticed the muscle growth quickly occur. The growth wasn't enough to make him overly powerful, but it was more than enough to be noticeable on his otherwise plain body. He wasn't fat before, but he was far from muscular. Now his body had a toned muscle look, and he was speechless for a moment before he shouted. "YEAH! That's what I'm talking about!" He picked up another protein drink and quickly shook it. Just as he opened it up, he noticed a warning label. "Warning, do not consume any more than one serving per day? Man, fuck that. I want to get jacked!"

Jake poured down the second drink and tossed it onto the ground. He felt his muscles begin to swell and bulge again. His once toned body now took on a muscular shape. He also felt his feet grow, and he was thankful he didn't wear socks as he noticed his feet swelled three sizes. His cock also grew an additional three inches, and he could see it in his pants. "Hah, why don't they want you to take more? This feels awesome!" He didn't even notice the short brown fuzzy tail stub he grew above his now powerful ass.

Jake looked down at the rest of the protein drinks. He regretted only getting a six-pack of them now. He opened up the third one and gulped it down. Once he finished the drink, he crushed the container with his bare hand and grinned wickedly. "This feels so awesome." He said as his muscles continued to swell. This time, he felt his ears grow upwards and flop down right in front of his eyes. He moved his ears away just in time to feel a warm tickling sensation as fur dusted over his body. He noticed the fur was brown in color. "Huh?" He felt his tail wiggle. "What? Am I becoming some kind of powerful rabbit or something?"

Jake now looked as strong as a bodybuilder did, and his cock was as big as a horse's. His chest felt slightly heavier, and he felt slight curves in addition to his strong muscles. 'I wonder if it's changing my gender too, if partially.' He thought. In any case, he felt so much better with every drink. He felt almost as if he could be a superhero. He picked up another energy drink and took a deep breath. He chugged down the next drink, and watched his body.

Jake's body continued to grow muscular. He felt himself even grow taller. His feet swelled to a size thirteen, but they looked far more like bunny feet than normal feet. The fur that dusted his body covered him up more. He was a mostly brown furry bunny with a white spot on his chest and white fingertips, almost as if he had gloves. He felt his two front teeth grow down and whiskers came out from his nose. He looked far more like a bunny anthro than before, and his cock was so big his pants could barely contain it now. He also felt something open up behind his cock, and it was something warm and wet. He knew without checking that he was changing genders. He wasn't becoming female entirely, but a mixture of man and woman.

"Oh, a herm bunny?" Jake's voice picked up in tone. "Hah, I got the tits too." He noticed he had a very muscular chest, complete with tits that measured well beyond DD. His clothes barely fit him anymore, but he didn't care.

Jake looked to his turned off television just as he finished the remaining drinks He felt himself grow to eight feet tall with tits so large that a person could easily use them as two massive pillows. His balls were almost just as big while his cock swung past his knees. He ripped off his clothes with ease and flexed in the mirror. He was stronger than any bodybuilder was, and while he was technically a woman and a brown bunny anthro, Jake still called himself male. His pink bunny nose twitched as he grinned happily. He turned to the door, now too small for him to walk out normally, but he didn't care. He walked to the door and ripped it off the hinges. He walked outside and stretched. He was now completely naked, taller than most any humans were, and definitely stronger. He didn't have the ability to fly, but he could confidently take any punches or beatings. "The world could use a super strong bunny to help them out, and since I don't know about any other super strong cute bunnies, I'll be the one to do it!" He walked away with his big bunny feet cracking the cement with every step.