To start off, I was born a boy named Thomas. I grew up with my mom and my two younger sisters, Erin and Karly. When I was thirteen, I finally made up my mind that I was a girl trapped in a boy's body. It took me until I was fifteen and a half to convince my mom to let me transition. She's never been comfortable with it; she really wanted a son and she flat out told me several times that growing up in a house full of girls had me confused, but I knew it wasn't just some phase.

By the time I was seventeen I had a halfway decent body; the soft, womanly shape I'd always dreamed of, B cup breasts, long, dark brown hair... I couldn't get surgery at least until I turned eighteen, though, my mom was completely against it. I still didn't like my body because of the male parts between my legs, but I was living as a girl and life was all right. The major annoyance was my little sisters.

Erin was a year younger than me and really hated me. We got along as kids, but when I started transitioning we stopped getting along. I think it started because she was jealous of me for getting special attention and developing a nice female body so quickly. Not to say she wasn't good looking; she was tall and had great long legs, and she loved to show off her body. She really got mad at me, though, when we had to move away from all her friends so I could start over at a new school. She started getting really passive aggressive and competitive at that point. Karly was two years younger than Erin, and didn't hate me, but she was really annoying and self centered.

The minor bits of picking on me and treating me unfairly stretched on through most of my teen years. My mom didn't really care, and I'd usually get punished for fighting back. A couple months before I turned eighteen, though, things blew up.

I can barely remember how it started. Erin and I were fighting in the living room, both of us wanted to TV or something. It was summer, so we were both hanging around the house in our pajamas, me in loose pants and she in tight gym shorts that she always wore, and both of us wearing t-shirts. We took turns stealing the remote from each other, then it turned into shouts, and then we were smacking each other. This happened once a week or so, so it seemed perfectly normal to me.

Suddenly, though, her knee flew up into my crotch. I'd been busted a couple times as a kid, but never this hard... I could feel my balls get shoved up against my pelvic bone, and before I knew it I was on the floor clutching my crotch. I forced my eyes open and looked up at my sister; I can still remember exactly the way she looked, kind of shocked and excited at the same time, standing over me with her long legs still tensed up.

I guess I made some noise on the way down, because my mom walked in to see what had happened. After a minute of catching my breath, I managed to force out, "Erin kicked me..."

My mom glared at my sister, but she obviously wasn't making any judgements yet. "Were you fighting over the remote again? It's just as much your fault, then."

"But... She kicked me... You know..."

"In the balls?" I could tell from her face that I wasn't getting any sympathy. "What's the big deal?"

"It hurts so much..." A couple tears were streaming down my face, but at least I was breathing again. The pain was incredible, though.

"Well, you don't seem to want them anyway, right?" I could hardly believe what I was hearing. "I really don't want to hear this crap when I'm spending so much on your medical bills, damnit." Erin was off to the side grinning so wide now.

I put on my pleading face, with big puppy dog eyes. "But... She kicked me in the balls..." I hated saying that, but I wanted Erin to get at least a little punishment for putting me through this.

My mom's gaze hardened into a full on glare. Uh-oh, I thought. "Listen! I pay for all this crap and I still don't believe you really want to go through with this. Maybe you should prove to me you hate having those parts by not complaining when they get hurt!"

"Ugh... What are you talking about?" I really couldn't believe this. My head was still swimming and I could barely follow what she was saying.

"Listen, if you complain to me again about getting hit in the balls, I'm taking you off your hormones," my mom announced. Even now, I still don't understand why she would make up a rule like that; maybe she just wanted some excuse to try and turn me back into a boy. When I opened my mouth, she shushed me, and said "End of discussion. I hear any more complaints, and it's over, Thomas." I cringed, not just because she used that name I absolutely hate, but because when she said that, it meant there was nothing I could do. She turned around and stomped out of the room.

Meanwhile Erin had grabbed the remote and was lounging on the couch; once my mom was gone she turned the TV on and acted like nothing had happened. I wasn't in as much pain any more, so I got up and stomped over to her. I needed someone to take out my anger on. "Give me the fucking remote!" I growled.

Erin turned toward me and grinned. "Fuck you," she said. Then she balled up her right hand and punched me right in the balls. The wind got knocked out of me again and I fell into a fetal position on the floor, coughing. It didn't hurt as bad, but it still felt awful.

Leaning over the side of the couch, my sister taunted me. "What'cha gonna do about it? Listen, from now on I can hit you any time I want, and if you tell mom anything, it's bye-bye to your special pills." I was half blinded by pain, but I realized she was right. This was awful, awful news. I picked myself up off the floor and ran to my room with my tail between my legs... Or rather, my hands, clutching my sore privates.

After a few hours I wandered back out to the kitchen. My hope was that it had all been forgotten by then... Oh, I wish it had. My sister was nowhere to be found, so I figured I was in the clear and went to the fridge for some food. Suddenly, out of nowhere, Karly popped up smiling from ear to ear. She was fourteen at that point, and one of those young teens who looks like a little angel, but then turns out to be a little brat.

"Is it true Erin kicked you in the balls?!" she asked me, annoyingly loud. I groaned, remembering the pain and also fed up with everyone talking about my private parts.

"Yeah, she did," I admitted quietly, thinking that this must be the worst day of my life... I wish I had known that the worst was definitely yet to come.

"And is it true mom said you had to let us kick you in the balls?!" she squeaked.

Without thinking, I barked back, "That's not what she said! She just said I couldn't complain if you did." By the time I realized why she was asking, the words had already left my mouth. I watched an evil, evil grin spread across her face, then she swung her foot back. It was like everything went in slow motion, and all I could do was tense up my whole body and try to block her kick with my hands. I managed to get my hands down to block her ankle, but I was just a little too slow. At the same time she hit my hands, she hit my crotch as well. I winced, but it actually wasn't too bad, she just barely hit me. Sure, it hurt, but I could still move.

And move I did. Before she could try anything else, I turned around and ran for my room. My mom had a rule against locks on bedroom doors, but I could hold it shut from the other side... Maybe brace it with my chair...

As I was racing down the hall, though, Erin jumped out and tackled me. I should have known she was masterminding the whole thing... We went down to the floor hard, and while I was writhing and trying to break free, she was pinning me down with her body and grabbing me by the arms. I almost broke free before her knee went straight to my balls and knocked the fight out of me. My mind went blank with the incredible pain and I tried to cover myself, but Erin took advantage of my weak moment and pinned me right down to the floor. "Quick, get her Karly!" she shouted, and it slowly dawned on me what was coming next.

In desperation, I shouted "Mom! Mom!" but Erin laughed. "She went to the store, won't be back for an hour," she said with a grin. Then, over her shoulder, I could see Karly standing between her legs.

I squeezed my legs together as hard as I could to protect myself, but after a minute of struggling, my sisters managed to pry my thighs apart. "Go on Karly, get her!" Erin cackled. I could see my younger sister wind up for the kick and I winced and gritted my teeth, but nothing could have prepared me. Karly's foot swung down right into my balls and it hurt worse than anything I could have imagined. I could feel them bouncing around from the impact, and I was in agony. I felt like throwing up and I couldn't open my eyes or breathe for close to a minute, but I could hear my sisters talking over my gasps for air.

"Dude, I can't even tell if I got them," Karly said, and I could hear the excitement in her voice. This was probably nothing but a little fun for her.

"I'm pretty damn sure you did," Erin said, looking at my face. "But you're right, it's hard to aim with these pants on. Let's take them off." I wanted to protest so bad, but I couldn't even begin to open my mouth. I could feel them pull my pajama pants down, and that's when I realized I'd been lazy that morning... And not worn anything under the pants.

"Oh, dude!" "Shit!" Both of them were gasping as they saw my bare privates. Great... Now I could die of embarrassment while suffocating from having the wind knocked out of me so many times. "Wow, they're big and red..." Karly marveled. I was already a bit swollen after Erin hit me earlier, but by then who knows what I looked like down there... "They're like chicken eggs or something!" Well, that answered that question.

Suddenly, hands were on my testicles. Although they weren't being rough, just being touched there hurt like hell, and I gasped and wheezed and tried to curl up. "Wow, even that hurts?" Erin asked me, rolling my balls around in her hand. "I just wanted to feel them..."

"Fuck you..." I managed to get out before bursting into another coughing fit. God, these two... Someday, no matter what, I would find a way to get them back for this.

"Oh, now you've done it," Erin said, and I could barely make out that evil grin again through teary eyes. "Go on, hit her again!" Karly stood over me and I could do nothing as she raised her foot up and stomped on my poor, tortured balls. I went blind with pain and my body writhed in agony, all out of my control. My sisters just watched, and I swear I heard Karly giggle.

Now Erin sat up, straddling my chest, and let go of my arms. Karly held my legs down, and when I tried to clutch my poor nuts with my hands, Erin grabbed me by the balls and squeezed. Hard. I let out an inhuman high-pitched noise and my hands dug into the carpet in pain.

"Listen, bitch," Erin told me in a voice like mom's. I'd never heard her talk like that before. "This is how it's gonna be. We can smack these balls around any time we want. Fuck with us, and we'll gang up on you again." She gave my balls a little harder squeeze to emphasize the point. "So any time we want, we can hurt you as much as we want. Fight back, and we might just break your little balls. Got it?!"

At this point I would do anything just to get a few minutes to recover. I managed to nod and she let go. "Good," she said, and stood up and walked off. Before I could do anything, Karly buried her fist in my ballsack once, and walked off as I curled up into a ball on the floor, clutching my poor privates. Ten minutes later, when I could finally move, I grabbed my pants and crawled to my room, where I hid all day and all night.

For about an hour there I couldn't even think. I just curled up in bed and cradled my nuts, hoping they'd get better soon. Once the physical pain died down, I lay there and panicked. This was going to be HELL. How could I get out of this?! There was no way, no possible way I could stand all this.

After some thinking, I finally made up my mind. Once I turned eighteen, I could go fill my prescriptions myself, and my sisters wouldn't have anything to threaten me with. Sure, my mom could probably find some other punishment, if she really wanted to, but I could risk it. Two months. For two months, I could hide from my sisters and stay out of the house as much as possible. But god, those two months would suck.

To Be Continued