[TF4A] I’m having a strange reaction to my hormone therapy…(size play prompt)

NSFWRP

As far as trans women go, I’d say I’m pretty lucky. My figure was naturally feminine even before I began expressing my gender identity. I was tall and lithe, fair skinned with pretty eyes and thick, wavy, light brown hair.

I had some work done to amplify my feminine appearance, mostly some face work and fat transfers. They were pricey, but work it. I avoided hormone therapy for many years, fearful of the side effects and losing my ability to function sexually.

But recently, I was offered to join a clinical trial to test a new type of hormone therapy that was supposed to start working more quickly and not have any side effects. I decided to take the chance and took on the trial, but little did I know the effects it would have on me.

Apparently, I have a very rare genetic quirk, one that would never make itself known unless I’m on this specific type of hormone therapy.

Over the weeks and months, I found myself looking more feminine, but also some other strange changes that I found thrilling and erotic. I was getting taller, my muscles were becoming more prominent, I was feeling stronger, and best of all, my girlcock was getting bigger and bigger. My balls grew as well, but so did my hips and breasts. It was like I was getting the best of both worlds for men and women.

And the longer I was on this new hormone treatment, the faster things change.

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Hey there! Here’s a simple prompt where I play as a towering, strong looking yet still feminine, well endowed trans woman version of myself dealing with my ever growing size, ever increasing horniness, expanding hypersexuality, frequent uncontrollable erections, and endless streams of cum.

I’m open to any partners of any genders, although other trans women get priority. I’m also open to GMs.

Limits: underaged, animals, bathroom play, anal, violence.

Posted Feb 20, 2026, 4:29 PM UTC

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