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Here are the next two installments of my story, I hope you like them as much as I enjoyed writing them!

 

Parts 1-3: https://muscle-growth.org/topic/6460-dont-stop-parts-1-3/

 

PART 4:

 

                While Andrew was getting off on his improved physique, Nicole was wondering if she was moving too quickly. She hadn’t counted on him getting taller and more muscular so quickly, but she couldn’t deny that she wasn’t getting off on his improvements too. “Especially,” she though, “his biggest improvement.” She couldn’t stop thinking about how great their sex was and about how much more he was filling her up now than the night before, and she started to get wet. Her hands almost automatically drifted to her dripping pussy and started massaging herself. In almost no time she was moaning and gyrating thinking about how much more Andrew will be changing in just a few hours…

                Andrew had started masturbating almost as soon as he threw the ruler down on the bathroom floor. His dick felt so much thicker in his hand than before and so much more powerful. He ran his hands up and down his abs feeling the small ridges that he hoped would soon get deeper. He cupped his right bicep with his free left hand feeling how round and hard it was. He could feel it flexing and unflexing as his stroking got faster and harder, thinking about how it could get so much bigger if he started working out more. And just like that he felt a freight train rolling up through his balls and abs until he came all over his bathroom mirror. This wasn’t a small load either. This may have been the biggest load of his young life as he shot six thick streams of milky white cum all over the sink. He almost felt embarrassed that felt as good if not better than the sex he had just had with Nicole a few hours ago, but he chalked that up to having a bigger penis now.

                Just as he finished cumming he heard Nicole gasp and scream from his bedroom. He ran to her thinking something was going horribly wrong, but when he reached the bed he saw that she was just masturbating and had just orgasmed. In her sex-crazed state she grabbed his still hard dick and pulled him into bed, threw him down, and pulled of his pajama bottoms. She needed to feel his bigger dick in her mouth now, and she knew that she could make it bigger too.

                Andrew was having the time of his life. Just two days ago he had been a shorter, fatter, less confident student who had never had sex before in his life. Now he had the girl of his dreams pulling his pants off to give him his fourth blowjob in just two days. He had the added bonus of having just cum a few minute earlier, so he lasted a lot longer than usual. He was riding high on endorphins and starting to fall madly in love with Nicole. Everything was going well for him, and he finally felt truly happy for the first time in his life. And with that beautiful thought, he orgasmed. It was so powerful and thick he was afraid he might drown Nicole in his jizz, but she was a trooper and greedily sucked down every sweet drop.

                Andrew started to sit up once he felt his orgasm finally subside, but Nicole pushed him down again and sexily said, “Oh I’m not done yet, I’m still thirsty.” Andrew was only too happy to comply, although he did think it was a little strange that he could get hard so soon after cumin twice in just a little under a half hour. But once his cock started plumping up in her mouth again, he definitely stopped worrying and started basking in the pleasure she was providing him.

                The couple only got to sleep an hour later after Nicole had finished blowing Andrew for the fourth time. It seemed to him like she was addicted to his dick, but he had no idea about her ulterior motives. He just knew that he felt completely drained and would need to drink a gallon of water the next day to rehydrate his balls after the epic cumming he had just done. He knew it was 4:30 am, but he didn’t have class the next day, so he turned off his alarm and decided to sleep in the next day.

                Nicole fell asleep next to her soon to be improved boyfriend wondering if four doses in one hour was too much, but she realized that what was done was done. She was too committed to stop now.

 

PART 5:

 

                Andrew woke up, even more peacefully than the day before. He rolled over and saw that Nicole had already left. He reasoned that she probably had to get to lab early, but he was still somewhat disappointed that he didn’t wake up to her gently sucking his dick like the day before. He rolled over on to his other side to check just how late he had slept in. He was shocked to see that it was already 2:00pm. He jumped out of bed, ran to the bathroom, and was about to jump into the shower when he caught a glimpse of his reflection in his bathroom mirror.

                The first thing he noticed was that his mirror was still caked in his dry cum from last night, but the next thing he notices was that he had transformed even more than he had noticed the night before.

                He was muscular now. Not bodybuilder muscular, but he could easily get hired as a fitness model by any supplement company. His pecs were round and firm and protruded an inch from his body. He tried flexing them and was surprised when they bounced way more than he thought they could. Looking above his pecs he noticed that his traps had grown significantly and that his neck was almost as wide as his head. His shoulders were so broad he was worried that he might have some trouble going through narrow doors now, and they were large enough that he could easily make out the heads of his delts. Turning his attention to his arms he noticed a large vein crawling over the top of his much bigger bicep. He did a double bicep pose in the mirror and could see nice clean split heads in his biceps. He could also tell that his arms had gotten to be at least 16 inches around (although he made a mental note to actually measure them later). His triceps looked swollen and hung from his arms like fleshy horseshoes. His forearms had also gotten much larger even though they were pretty large to begin with because of Andrew’s masturbation habits.

                Below his pecs lay a perfect cobblestone six pack with deep ridges just like he had hoped for the previous night. He flexed his stomach hard and could almost make out the beginnings of his last two abs. Even though he was proud of his six pack, deep down he didn’t think it was enough; he wanted his eight pack to show. His legs had finally made considerable gains and now looked thick and powerful. His calves had the beginnings of a strong diamond shape and made his look like he never skipped leg day. His upper legs had a width and thickness to them that made Andrew realize that he could easily be called “thunder thighs” and it wouldn’t be sarcastic.

                Turning his attention away from his sexy muscles (“Whoa,” Andrew thought, “did I just call myself sexy?”), he noticed he was much hairier than before. His face a nice even coating of five o’clock shadow. He ran his hands up and down his cheeks and felt just how bristly and manly he felt because of it. “I can probably grow a beard now,” he thought proudly. His chest was also covered in a light even coating of soft dark hairs that lead to a confident treasure trail leading to his crotch. His legs were also very hairy now, covered in thick wiry hair that was very noticeable “and very manly,” he thought. He was probably one of the hairiest Asian men that he knew at Cornell, but he still had nothing on some of the White guys who even as freshmen had sported thick full beards and chest hair. “Maybe soon…” he thought.

                As he looked down at his legs he noticed that the floor seemed farther away than usual. His growth spurt from the night before had dramatically increased his height. Like most kids, Andrew’s mom had kept a height chart on his bathroom doorframe to mark how much he had grown. His mom insisted that he continue the tradition while away from college even though he had almost fully completed puberty by the time he got to Cornell, and as expected, he had only grown a quarter inch in four years. However, this height chart now came in handy as he could easily see that he had grown significantly overnight. Getting out his tape measure he determined that he had grown to be 5’ 9”, an increase of four inches in the past two days alone. He was finally within average height range for men in the U.S. and well above average height for Asian men.

                All of his changes started to make Andrew aroused which drew his attention to his final change he hadn’t noticed because he was still wearing his now too short pajama bottoms. He almost cried tears of joy after pulling them down to his ankles and looking at his penis. It was magnificent. His ruler told him that he was now 4.5 inches flaccid, but his cock didn’t stay soft for long. It soon jumped to attention and ended up at its new rock hard length of 7 inches with a girth of 5 inches. He could hardly fit his whole hand around it and noticed with great happiness that he could almost fit a second hand on top of the first. All of a sudden Andrew realized that his life had transformed into something perfect and his endorphins rushed. He grabbed his bottle of lotion and begin furious masturbating to his own image. Pictures of Nicole and of their sex flashed in front of his eyes, but he was mostly focuses on the sexy facial hair, the beautiful biceps, his thick thighs, and his big cock. It took him no time to cum, having the greatest orgasm of his life (a feat which he seemed to be achieving every day now). His orgasm lasted for a minute, and his dick never stopped shooting thick ropes of spunk coating every surface in the room.

                After what seemed like an eternity, Andrew regained sensibility and decided to take a shower. He could clean up the bathroom later. However, his dick had plans of its own and decided not to soften at all. “Well, I guess I have no choice,” Andrew said with a stupid grin on his face. His shower lasted four times longer than normal and he masturbated an extra three times, each time cumming harder than the last. After stepping out of the shower he returned to his bed where he continued his epic jerk off session. He didn’t even look at the clock, he just kept going and going and going. He finally had to stop when he realized he needed to take another shower to clean the cum off of him that his Kleenexes couldn’t get. Looking at his clock now he realized that three hours had passed. Taking about 10 minutes to cum each time, Andrew then estimated that he had just masturbated 18 times in a row without stopping or running out of semen. He knew this wasn’t normal and this shouldn’t be happening, but he didn’t want to stop.

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