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Mad Science

Returning for a check-up

added 3 years ago AR AP BM Male Body swap

I turned 13 last week. It’s been a little under 10 years since my little brother Brad and I swapped bodies for good.

Lucas was eventually was kicked out by my parents and went to live with his friends in a messy group apartment.

Brad was 25 and was living with his girlfriend. He moved out right after graduation at age 18 to go to college in another state. I hadn’t spoken to him since.

I eventually accepted who I am now after our last check up with Ted several years back.

It’s been so long that no one even thinks twice before referring to us by our new identities. Today we’re going in for the first of one of last 2 appointments. The next one isn’t until I’m 21.

“David!” I hear my mother happily greet my brother.

“Hey mom. I’m here to take Brad to our doctors appointment.” Hearing my- I mean, his voice, gave me a strange feeling.

Saying he had grown well in the last 10 years would be an understatement. He had a neat beard and a tan from moving closer to the coast. He looked like he worked out as well. I never knew my old body had that potential.

“Are you sure you two are ok going alone?”

“Yes mom, it’s a personal thing.” He said

I got into the car as he drove us to that strange facility. I used to see it in my nightmares the first couple weeks of the swap.

Brad was the first one to break the silence.
“I’m sorry for not staying in contact, David.”
I was startled to hear him refer to me by that name. No one wanted to remind me of it.
“It’s just that... I felt guilty. I was just a little kid when all this swap stuff happened that I didn’t realize what I was really taking from you.”

“Don’t worry about all that stuff now. What’s done is done. I’m just glad that you still know me as David.” I smiled.

We got to the facility and were guided to a grey office together.

“We didn’t do this last time as we assumed it would feel very invasive or even a bit traumatic to properly inspect the physical condition of your new bodies. Now that the two of you are full accepting of you new forms, this inspection is a necessity. You can disrobe in private. Personnel will come to escort you to the test room shortly afterwards.”

I was then taken to a pristine white room with a giant mirror wall. I began to take off my clothes. I took stock of my face.

I chuckled to myself. Turns out Brad was never going to grow into his ears. They prominently stuck out from the sides of my head. I looked at my freckles, my button nose, all these things were meant to be Brad’s. It weird to think at this point he’s been in my old body longer than in his...

The sound of a knock at the door pulled me out of my thoughts and back into reality.

“This way Brad.” The man said.

That’s when I saw it, My- David’s body- in all its glory. It looks like I would taken after my father in the hair department. He had moderate chest hair, meanwhile I had just began to sprout wisps of pubes again.

My old dick had much more girth and was significantly longer.

“Excellent.”The head professor pulled out his clipboard and clicked his pen as he looked at me. “Now Brad, can you get erections now?”

I solemnly nodded yes.

“Good. Very good. We were hoping you would have undergone puberty by now.”

He then turned to my brother “David, are you currently sexually active?”

Brad nervously looked towards the ground. From his hesitation I knew what his answer was gonna be.

“Um.. yes.”

“Perfect, we’ll be needing you both to masturbate and compare the times it takes to ejaculate, semen production, and sperm count overall. We’ll have several other tests after that.”

“What could you possibly need that information for??” Brad asked.

“We want to see if swapping minds could have impacted your regular bodily functions and development milestones, even after all these years.”

“But couldn’t this be done in private?”

“It’s in our best interests for both subjects to be exposed to each other.”

“No, I’m sorry but this is just too much.” I finally spoke up.

“That’s rather unfortunate. We were going to use this data to help support our body swapping research. New milestones such as more than one transfer per lifetime could’ve been possible with this data.”

“Wait a minute so you... you’re saying, I could get a new body?” I asked.

“It would no longer be outside the realm of possibility. But if you two are uncomfortable with the necessary research..”


What do you do now?


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