Weird Science (body swap)
by zulator
Senior science classes could be fun, especially during the last quarter of the year when there was a light at the end of the proverbial high school tunnel. Girls were planning the senior prom and the jocks were hoping for the all they can get some hot action at Prom night. So with all this testosterone going around in the locker rooms, some of it was more than likely to spill over into the classroom.
Biology class at this stage of the game had all of a sudden become interesting. With all the basics now covered, our teacher Mr. Longfellow was going to give us a treat since our grades seemed to be headed in the right direction.
On the last day of classes, he was doing experiments with rats. In fact two rats, one white and one black. He let us in on some advanced information on DNA and how it was extracted from blood and how it was re-introduced into the body. The whole class seemed uncomfortably interested as Mr. Longfellow took these two rats and extracted a blood sample, put them into a centrifuge like machine and in a few minutes there was a milky substance that came out and was supposed to be the DNA extract.
He then took the DNA extract from the black rat and told the class to watch as he injected it into the white rat.
The whole class was all oooohs and ahhhhs as he did this procedure, almost as if he was some mad scientist or something. Anyway, everyone watched, it was almost like a mosh pit at a rock concert. I was up front of course and a few guys were edging up behind me. I could feel the body of one guy I assumed was having a good time pressing his body into my muscular one. I turned my head and, yes, it was Walter pushing up against me.
I said to him, "Fuck dude. What are you trying to do, fuck me?" Of course I spoke softly but his answer pissed me off.
"Yeah Mark, the best fuck you would ever have."
I had to giggle. This big fat guy must be talking about his fantasies.
I had to give it to him, "Hey pig boy, only another pig would fuck you." That seemed to shut him up. Besides I wanted to see what was going to happen.
Within a few minutes, the class witnessed the most miraculous display of science fiction come to life they had ever seen. The pure white rat began to grow black hairs. Either that or his white hairs were turning black, and for some reason I could feel Walter's cock against my ass and that was enough for me. I turned abruptly and grabbed his shirt and pulled him over to the side. No one seemed to see or care as they gazed at the magic show.
I got Walter over to the corner and read him the riot act. "Listen you little pig dropping. Don't ever poke your pig meat into me again." And I pushed him up against the wall hard, apparently hard enough to make my point.
By the time I got back to watching the show, the white rat and the black rat were like twins. "Holy shit!" I shouted and Mr. Longfellow's eye looked up at me. "Oh sorry sir, I was startled by the change."
He gave me an evil grin and went on with what he was doing. He injected the DNA from the white rat into the original black rat, and fuck, within a few minutes that black rat's fur began to change to white, and as quickly as it started, it was done and all the kids were spellbound.
"Ok, go back to your seats," Mr. Longfellow told us. As we all sat down, he told us that it appeared that an animal could be changed if a foreign DNA agent was introduced into its body. I instantly thought of Bill Parker, my jock friend with the 8-and-a-half-inch cock. Wow, I thought, if only I could get some of his DNA.
Way back in the back where Walter was sitting, his mind was wondering also, thinking about what would happen if he had some of my DNA injected in him and his injected into me. It was becoming so much of a desire for him that he asked if Mr. Longfellow could he extract his DNA as a last semester present. The whole class came to an uproar with hands swinging around. Mr. Longfellow was asking for quiet, and finally the class seemed to calm down.
"To answer your question Walter, yes. I intend to give each student a sample of their DNA as a end of year gift."
Walter's eyes lit up as Mr. Longfellow asked each student to prick their fingers with a device he gave each of us. He extracted a small tube of blood from each of us and in turn placed them into the centrifuge machine and then gave us each our small glass tube of our DNA. The whole class was amazed as they got theirs. Walter was up front to get his and Mr. Longfellow gave him his and also mine to pass to me.
"Now remember Walter, give this one to Mark," he said with a slight grin.
Well, just as fast as he had gotten hard behind me before, Walter turned around and his crotch was about to explode. A quick palm trick and I was given the small glass tube of Walter's DNA and he now had mine.
All of us were pondering the effects of each other's DNA on the other, and Mr. Longfellow could see what was brewing. "Hey class, now hold it down. I have to say this experiment is not for humans, so don't get any ideas." What he wasn't telling us was that it hadn't been tried on humans as far as he knew. That announcement didn't seem to change the mood of the class at all.
I was teasing the girl in front of me telling her she was just a prick away from growing a prick, and she laughed and added, "Yeah you too Mark. Just a prick away from losing your prick." And the whole class was giggling. Then from the back of the class, one of my jock friends had just cut his hand on the glass, but it was intentional as he was making an entrance so he could blow on one end of the glass and force his DNA sample back into himself. Whatever he did seemed to work, and everyone started to do so.
"Yeah man, I'm not taking any chances with my DNA." I heard another kid say and just like that they were forcing the small sample into a cut they made in their finger. I was just looking around wondering if maybe I should do the same thing. Walter was just biding his time to see if I was going to force his DNA into my body before he did mine.
"Oh what the hell," I said as I made a small cut in my finger and stuck the glass into it and blew as hard as I could. "There. Done," I said as I wrapped my finger with the edge of my tee shirt.
Apparently Mr. Longfellow thought we were all kidding as he cleaned up and we waited for the bell to ring. I turned around and caught Walter blowing his sample into his arm and smiled and said, "Thank God that sample didn't get mixed up with a normal person."
I was going to start to giggle more but I began to feel weird, I wanted to laugh but when I did it seemed like I was shaking like a bowl of jelly. I looked down at my stomach and it was swelling out like a water balloon filling up. I could feel my lips swelling too and I was beginning to sweat buckets. I rushed out of the class and into the boys room and over to a mirror. My face was swollen like I had the hives and my stomach was growing as well as my chest. My muscular pectorals went soft and were growing like little mountains against my shirt. My loose fitting jeans were now tight as hell and I could no longer see over my waist. I was turning into some big fat person and I didn't understand what was happening. Soon the boys room door opened and there was Walter, but no, it wasn't him, or could it be? If it was Walter, it only looked a bit like him, and he wasn't fat anymore. Rather he was holding up his pants so they wouldn't fall down. My pants were ready to pop, so I unbuttoned them and let them fall to my ankles.
My body was changing in stages. It seemed all the parts of my body were rearranging and I was getting taller and fatter all at the same time.
The sensation of changing this way was making me dizzy and disoriented. My body was sending me conflicting signals. I was rock hard and horny as hell during the entire process. As my body got closer to its final shape, it felt like all my male vigor and vitality was zapped from me, like a sudden loss of testosterone. I wanted to say something to the kid who was transforming into a jock before my eyes but I was dealing with my own transformation and couldn't speak.
Soon, I had to remove my spandex tee shirt. It had expanded to the limit. I was now looking at a taller, fatter kid with a chubby face and I could swear I was starting to take on Walter's features. I just stood there watching my boxers briefs roll off my now nonexistent waist and gather around my now chubby legs. I turned to ask for help and I was looking at myself, the buff and cute Mark I was before. Standing nude and admiring his new hard buff body, Walter started to jack off his new 7-inch cock. He jacked it with such a frenzy he came in just seconds, shooting his thick load up onto the mirrors, and then slinging the cock around so the excess cum flew across the floor as he moaned in delight. I watched in horror as my hand went down over this huge gut I now had, down to an area that they call an apron on a fat guy- that wide band of fat that seemed to make my cock an insignificant part of my body. Yes, that thick fat area just below the main fold of fat that made up by my stomach. I had to hold up my gut to touch my cock now and it was small and stubby. My handsome chiseled face was now a round chubby one and my hair was nasty, not the groomed and highlighted head of hair I used to have. To add insult to injury, Walter grabbed his old clothes and threw them at me, then pulled the boxer briefs from my ankles and grabbed the rest of my clothes. I had to pull on Walter's clothing to cover my hideous body for fear another boy would enter the room. I was Walter 100% and he was now me. But how, I thought? Oh shit! I remembered that Walter had handed me my DNA. Yes he made the switch. Shit, that bastard, I thought.
After Walter had adjusted his new clothes and hand brushed his highlighted hair, he gave me a slap on the ass and said, "Take care jock boy," and headed out into the hall. I made a dash to the Biology class to look for Mr. Longfellow, but the classroom was locked. Shit, shit, I kept saying as I began to sweat heavily. I was walking the halls like a crazed kid. I had to find my teacher to save my life.
As the sweat poured off me, I got the sensation I had to shit and it was too great for me to hold so I got to the nearest boys room and quickly into the nearest stall. I thought my stomach was going to explode right then. I must have had diarrhea, I thought. I must have shit for about 5 minutes straight and I wasn't feeling so bloated as before. When it seemed I could stand up again, I pulled up my pants and they were way loose, but at that moment I felt like I was going to belch. As quickly as the toilet emptied with shit, I was vomiting like a drunk who drank too much. "God damn," I tried to say as it seemed my body was being juiced from the inside out. I was so dehydrated at that point, but kept vomiting for another 5 minutes. Every muscle in my body was throbbing now and I prayed to God I could stop throwing up.
Slowly the sensation to vomit was dying down and I had developed hiccups as I slowly walked out of the stall dragging my pants and underwear around my ankles. Without looking, I put my head under the sink faucet and was washing my head and face. The stench from the vomit was overwhelming. As I cleaned my face and dried off I got a glimpse of my reflection in the mirror, and by some miraculous gift, I was my self again, but I did look somewhat beat. I looked down at the large pants and underwear around my ankles and laughed as I pulled them up to cover myself.
I was so happy to be myself again, I didn't understand nor care what had just happened to change me back. Later I found out that my body had rejected Walter's DNA for some reason, and I reverted back to my original DNA.
As far a Walter is concerned, I heard he got one of my girlfriends in a car and was fucking her in the back seat, and the same thing happened to him. It wasn't a pretty picture, however. He was in the back seat of a Volkswagen Beetle and they say it took the jaws of life to get him and the girl out.
What was next for me? Well, I was never going to take another biology class again, that's for sure.