Confused Dog Girl And Her Brother

Notes:
This is an **** story between a sister and a brother. If you are not comfortable with that, please do not read this.
I wanted to experiment with perspective here by writing it as first-person "love letters" written after the story that are addressed to the reader.
All characters in this story are over 18 years old.

I love you, master!

Okay, sorry, I just needed to write that out. It feels so amazing being able to finally say it! I've been holding onto these feelings so closely, and after everything that's happened over the past 6 months, especially these past few days, I have to explain myself through words. I have to help you understand why I let you, my older brother, become my master.

We weren't that close as kids, right? We didn't talk about much of anything. At least we got along well enough. We didn't fight like other siblings do. We just... didn't talk. You were still an amazing brother, though. I remember, during one of the few times we did anything together, we went out to the woods. This was probably when you and I were around 8 or 9 years old. We were walking together, when a big snake slithered by. I got so scared, but you jumped right in front of me to protect your little sister. Nowadays, we know the snake was completely harmless, but I looked up to you so much for saving me.

Once we got into high school, we really went our separate ways. You had your own life, and I had mine. I always felt a little sad that I couldn't be closer to my brother, but I thought that was just part of life.

Something else that hurt me was seeing you with your girlfriends every so often. I had no idea at the time why it made me upset. Maybe I thought you deserved better, or maybe I thought you had horrible taste in women. Now, I'm pretty sure it was jealousy. I had my own fair share of boyfriends, but none of them felt right to me. I never got very far with any of them.

As the end of high school approached, we found out that we both got accepted into the same college. You had the amazing idea to save some money by moving in together. We found a nice but small apartment to live in about 10 minutes from campus, and I was so excited about the chance to get closer to my brother.

That's when the thoughts started.

All throughout high school, I thought I was just a woman. In this world where nearly half of women become petgirls, you have to know what you are to plan for the future. I was prepared to get a computer science degree, I was gonna be a world famous programmer! I had my whole life sorted out. Only a few days after moving into our new college apartments, I started having these thoughts and images pop into my head. Every time I saw a pet girl walking down the street, I got pangs of envy. It didn't make any sense to me. Why would I be envious of a petgirl? I'm my own woman, I don't take orders. I don't submit to others! I choose my own destiny. But these thoughts...

I started thinking about what it would be like to have a man tell me what to do. I started imagining myself kneeling by a man's side as he rubbed his hand on my head. I dreamed about rubbing myself against a man, even... But I wasn't a pet. All I was, was a girl with a fetish, right? I didn't wear ears or tails. I didn't even particularly care for any specific animal. Some animals are cute, but I didn't have an affinity for one or the other. At least not at the time.

It's not like petgirls are mistreated or anything. They have rights, they can live great lives. Being a petgirl is a normal part of the world. What hurt was the fact that I could feel my future slipping away. For years, I woke up every day to work on code, to watch tutorials, or read about different design patterns to help me become a better engineer for the future. Over the course of those first months, I felt all my willpower to be that dominant female **** in STEM leave my body. There were days I just cried at how I couldn't stop myself from wanting to be cuddled more than I wanted to be an engineer.

That's not to mention that being a petgirl makes you sterile. I hadn't thought deeply about having kids before, and petgirls don't generally want kids, anyways, but to have another piece of my future stripped from me was cruel.

You took notice, of course. What kind of older brother would you be if you didn't notice your little sister moping around all the time? One day, you managed to catch me still lying in bed well into the afternoon. You'd peer into my bedroom with a troubled look on your face.

"Hey, sis, you okay?"

"I'm fine."

"Have you eaten yet today?"

"I'm not really feeling hungry right now."

"You know I worry about you, right?"

"Thanks, bro."

Oh, did I say "one day"? You managed to repeat this conversation or some variant of it every single day for months! But that's what I love about you. You care about me so much, and you always put the effort in to make me feel better. Still, you couldn't just talk me through my problems. The thoughts were too strong. And while the hurricane of emotions was horrifying, the terror didn't truly coalesce until I realized that the thoughts were all focused on one man.

You.