As Rick looked down at his penis, its stream suddenly cut off, though he still felt the need of release. Suddenly, his testicles began to expand, as if being blown up like a balloon. It became textureless and smooth, expanding until it even consumed his penis. "What the heck?!"
Cindy continued to cry outside. "Rick, you have to get out!"
The mass continued to engorge by the second, taking more space between his legs and protruding several inches in front. His need to urinate increased tenfold, but it still fell to the wayside to what was currently happening to his body. This fleshy mass was quickly growing heavier. He attempted to make himself decent, but the mass was now hanging down to his thighs, larger than his head. He tried in futility to pull his pants around it, and realized this was no time for decency as it started to actively push his attempts downwards.
Rick awkwardly fumbled with the lock, his legs now splayed outward as the mass continued to bulge outward. The flesh anchoring to his body now took most of his gut without any sign of the growth slowing. He finally got the door open, but nearly slammed it back shut as he tried to dart through, as the flesh was now too large to fit through the partially-opened passage.
He swung the door wide and flung himself out, landing painfully on the mass. Cindy rushed to close the door again, then gasped in horror at the state of her boyfriend. As Rick heaved and gasped, unsure of what just happened, Cindy realized the fleshy mass was still growing in size. She ran to the kitchen and grabbed a towel, getting it wet and dashing back to wipe her boyfriend down. Hopefully, any chemicals still on him could be wiped away and stop this.
Rick rolled his body backwards, nearly sitting on the fleshy mass. It had become surprisingly heavy, now hanging below his knees when he heaved himself back into a standing position. Compared to before, whatever replaced his junk had stopped expanding. It had become pendulous with its weight, and he could swear he felt fluid within. "Uhh...Cindy?" Cindy returned, and immediately began to wipe the towel over Rick's newest asset. "What the heck, Cindy?!"
"Okay Rick, get in my room and take off your clothes. You need to get washed down."
Rick's was at a loss for words. She's acting like he was contaminated! He had no idea what was happening, so he obeyed, waddling his way to her room as she cleaned him. He stripped down, and Cindy left to get a second towel.
Rick heaved the mass onto the bed, trying to get a read on what this thing could be. It was nearly 2 feet in length, and probably wider in diameter. It had to be close to a hundred pounds. He poked it, and was displeased by the internal pressure he felt. Ever since Cindy had cleaned it, the mass had become pink in hue, almost as if irritated.
Cindy returned with a second towel, as she had grown paranoid the first towel was now contaminated. She really wanted to have Rick take a shower, but the bathroom was out of the question. Fortunately, it appeared as though her solution worked! The mass had stopped growing. She heaved a sigh of relief. "Alright, I think you're safe."
"What do you mean, safe?! What's going on, Cindy?!" He struggled to turn to her, as the mas forced him to face the wall.
Cindy regaled him with the story of a magical shop, her purchase, and the subsequent prank she had planned. She had just read the warning after doing so, and that's when her conversation was cut short. Rick began to groan as something strange happened to the mass.
It started gaining shape. The flesh began to soften, looking more like porous pink flesh, rather than a strange balloon. The sac reshaped into distinct quarters, and 4 tube-like growths of flesh extended from each at its end, each extending approximately four inches from the mass. It was then that both Cindy and Rick realized what his penis had become: a cow's udder.