I was just a poor college student, and needed to make some extra cash to 

make ends meet. That's why when I saw the ad for Gamble Labs I was 

intrigued. Become a sperm donor? Why not? A little bit of extra cash 

couldn't hurt. That's why I was disappointed after I went through the 

trouble of driving downtown, filling out the paperwork, and giving some 

blood for testing. The receptionist had explained all of this was necessary 

to make sure that my DNA was a good match. I was looking for some quick 

cash.

A week later, I had almost forgotten about Gamble Labs. I was studying for 

my English Lit class when my smartphone buzzed. "Are you still interested 

in sperm donation?" the voice at the other end asked? It was Gamble Labs! 

"Yes, of course!" I exclaimed. They said my tests were perfect and that I 

would be a great sperm donor. They just needed me to come down to the lab 

for my first procedure, and then I would be in the program--and able to 

make a deposit as often as I liked. My English Lit test wasn't until the 

next afternoon, so I had some time to kill.

When I got to the lab, the receptionist called a a male nurse who took me 

into an examining room. "I have to tell  you. Before you can become a sperm 

donor," he said, "we just have to give you a couple of injections with 

special nutrients and medication to ensure your sperm quality."

"Uh, OK, sure--I guess," I said, a little surprised. But the injections 

were almost painless and he took me to a spare room with a bed where he 

said I would rest for a bit before making my first deposit. "We'll come 

back and check on you in about 10-15 minutes," he said. 

That sounded OK, but I was starting to feel a little woozy, so I sat on the 

bed. He said this was normal and not to worry. "Now look," he said, "I'm 

going to need for those clothes to come off." I looked puzzled. The nurse 

said, "Don't worry, it's completely normal. You're not going to make a 

deposit with your clothes on, after all!"

Once I had stripped down to my shorts with his help, I naturally stopped. 

"Look," he said, "You'll have to take those off, too." He didn't wait for 

me to answer, but took both hands and gave my shorts a sharp tug, quickly 

pulling them off and exposing my dick, which was starting to feel a little 

excited. He surprised me by taking it in his hands, which caused it to 

spring up rapidly. It was looking a little bigger and more swollen than 

usual and I was feeling excited. He pulled it from one side to the other, 

giving it a thorough exam. He tugged on my balls, which also seemed somehow 

bigger. "It'll be fine," he said as the room started to feel like it was 

spinning. "Now you lay down," he said and gave me a gentle push. I fell 

onto my back on the bed with a huge cock sticking out. I shuddered, feeling 

like my cock was convulsing and splooging all over me. 

When the cum stopped, I tried to mop it up with the blanket, but my dick 

and balls kept growing. My dick was hard, fully engorged, and seemed to get 

a little bigger each time it throbbed. I had the distinct impression that 

all of my brains were flowing into my cock, which felt totally alive and 

bigger with each involuntary throb. My balls were the size of tennis balls 

and felt ready to explode.

After a few minutes, a man in a white coat, Dr. Gamble, and his male nurse 

came back into the room. "Try to stand up," Dr. Gamble said. It was a 

little bit of a delicate balancing act because my cock and balls were heavy 

and so much bigger. 

"This is your first sperm donation," Dr. Gamble said, "and in a way, it's 

also a test to see how you're coming along." He grabbed my dick, which now 

felt like it was about one and a half feet. My cock lit up like fire and a 

wave of sensation traveled the length of my dick and body, which somehow 

were feeling more intertwined and merged. Then, as the nurse grabbed a 

bucket, waves of cum started pulsing from my dick. A few minutes later, I 

had filled the bucket and was spent. Dr. Gamble said, "Perfect! Now, it 

would be best if you spent the night." I laid back on the bed and shuddered 

with pleasure.

I slept fitfully that night. Every once in awhile I would wake up with a 

throbbing sensation and feel like my dick was convulsing again. I'd feel 

the warm wetness of cum everywhere, and then I'd black out. Sometimes I 

thought I woke up to hear voices gathered around the bed. And then I'd feel 

a hand reaching out to examine my cock, which which would shudder and 

splooge everywhere to murmurs of approval. Then I'd black out.

The next morning, Dr. Gamble, walked in. "How are you feeling young man?" 

he asked. 

"A bit strange," I said. "I feel like my cock is ten times as sensitive as 

normal." I was laying naked on the bed and it felt like my something in my 

groin was weighing me down.

"That's OK," he said, "and completely what we need from our sperm donors." 

He reached out a hand and picked up my dick.

I gasped. My dick was a limp, but thick two feet long, and it started 

expanding and getting hard right away. "What's happening!?!?" I asked in 

surprise, and then felt my back slipping in the bed as though I was being 

dragged and pulled into my cock. 

"This is completely normal," Dr. Gamble said as though to reassure. "We've 

made some adjustments at the cellular level that will give you a better 

experience and also make you a more productive sperm donor." But I felt 

like my arms and my torso were shrinking, getting pulled into, and merging 

with my enormous three foot erection. It was pulsing, and with each pulse, 

I felt like much of me was shrinking and slipping away, and my unbelievably 

excited cock was getting bigger. My cock also began to feel like the center 

of my body now. Everything that it did, that it felt, I was feeling all 

over. All of my skin felt tight. I felt rock hard. And I shuddered with 

each throb.

Dr. Gamble said, "I'm going to help you get out of the bed." He pulled on 

me--really my cock, which seemed like it was about four feet long and a 

foot wide, and helped me onto my legs. I swung my now stubby arms and tiny 

hands wildly, as my feet tried to keep their balance. I was struggling 

under the tremendous weight of my cock and enlarged balls, which felt like 

basketballs between my knees. In the meantime, the rest of me had shrunken 

to the size of a freakishly tiny nub at the rear of my big dick. I waved my 

little hands about, but could do nothing. I was an enormous, freakishly 

engorged dick on legs. 

"This will feel a little strange," Dr. Gamble said. "You've taken a bit of 

a journey with us. Frankly, this is exactly what Gamble Labs needs for 

sperm donation. We've build a facility here that specializes in sperm 

production," he said, patting me on my enormous glans head. I started 

throbbing and convulsing, and the pleasure was unbelievable with his touch. 

He grabbed a bucket and hung it around my 1-1/2 foot wide dick head, just 

as I started splooging and feeling intense waves of pleasure like nothing 

I'd ever experienced. It felt like I was erupting with gallons of cum from 

my insides and my swollen red mushroom was beginning to feel like my face.

"Most guys that come here," said Dr. Gamble, "readily accept this 

transformation. You don't need to have any other cares in the world and 

we'll take care of your every need, which basically is just one. I promise 

you, you'll just want to experience wave after wave of orgasms, cumming to 

your hearts content, and that will become your world."

I tried to say something, but found it difficult to move the lips of my 

dick head. Dr. Gamble removed the bucket from around my neck and tied a 

harness around it. Then he tugged on my dick head and my legs willingly 

complied as I, a giant trundling dick, was led out into the hall, out a 

door, and into a pen with several other giant walking cocks. All were 

basically just massive four and five foot walking erections, rubbing up 

against each other, throbbing, pulsating, rearing up on their legs, and 

then splooging into buckets. 

I felt like I was on total dick instinct now and couldn't really think. I 

immediately started nuzzling up to the other giant dicks and rubbing up 

against them. Dr. Gamble fastened a new bucket to my mushroom head. As I 

rubbed up against one enormous dick, I briefly thought, "Hi! What's your 

name?" But I would just convulse with the other dick and splooge almost 

continuously from my mouth. Dr. Gamble and his attendants would regularly 

replace the cum buckets. I never felt so electrified and alive in my life. 

Somewhere in the back of my mind, I thought I had to get back to my 

college. It was a distant thought. Didn't I have an English Lit test to 

take? But then I would convulse and cum and get ready to start rubbing 

against the other dicks in the pen. It was all so far away.

At some point later that day--I had really had no sense of time 

anymore--Dr. Gamble and his assistants came and put a harness on our dick 

heads and led us all away for the night. I couldn't see much of anything 

anymore. My skin was taught and swollen, but my legs were balancing all 

five feet of me perfectly as I trudged behind Dr. Gamble. Dr. Gamble said, 

"You won't be able to see or hear much longer. You don't need sight and 

hearing for what you do here," He chuckled. You're here, you're very much 

alive--maybe more alive than you've ever felt. But your body has 

consolidated itself into your dick. Call it a merger, an absorption. Today 

was just a taste of what you'll experience. You can't go back to what you 

were, but you won't want to. Nobody does." I didn't, couldn't say anything 

as I twitched my glans lips.

"That's a good thing," Dr. Gamble said. "The point is, once you're 

continuously producing sperm for us and you're only really experiencing the 

world as your sex organ, you won't want to feel or think about anything 

else." I couldn't really disagree with him. My legs were trudging along 

carrying me, now just a giant extended and enlarged cock with giant balls 

swinging behind. I was right behind Dr. Gamble when I started trembling and 

feeling my new giant dick body pulsate. I shuddered and splooged from my 

mouth and all over him. Dr. Gamble just laughed. "That's why I wear the lab 

coat!"