Her name was Chelsea and she was absolutely gorgeous. She had shoulder-length orange-red hair and the cutest face, like a fairy or an elf almost. She was skinny, with a cute little butt and perky C-cups. She had the coolest fashion sense too, usually wearing stockings, arm-warmers, and a cute hat even when the rest of her outfit was pretty normal.

Compared to me, she was a goddess. I had been on hormones for a while, so I looked pretty feminine, but I had gotten just a little chubby and still only had B-cups. I usually wore kinda baggy clothes because I was self-conscious. I had nice, long, dark hair but I didn't really have the time to do much with it. I just looked kinda messy in general, but the worst part was the rumors. Starting last year, someone had starting spreading the news that I was biologically a boy. At first it was just something that got whispered every once in a while, but by now everybody had heard it. I couldn't get a date to save my life, and if I even made eye contact with someone, boy or girl, they had to make sure their friends knew how gross it was to have the school tranny flirting with them.

So I was 18 and graduating in five months and still a virgin. Hell, I hadn't even been kissed. Even with the estrogen lowering my sex drive, I wanted someone to sleep with me more than anything else in the world.

That's when I got the biggest surprise of my life, when Chelsea IMed me out of the blue. At first she was just asking about a history class she missed, it was test review so it was kind of important. After a while though, she got around to asking me if I really had a penis. She said she was curious about being transgendered and wanted to ask me a few questions about it. I finally gave in and opened up.

Mostly it was just the same questions every curious person has, about pills and surgery and getting teased at school. Eventually my sex life came up and I had to admit how badly I wanted to have sex, just once. She was shocked I'd never done anything, but then she changed the subject, she seemed a little turned off. I guess I was a little too flirty.

The next day, though, she messaged me again. We chatted some more, and then she said, 'I wish u were a girl'. I asked what she meant and she said I seemed cool, but she didn't like boys. I told her only one part of me was a boy, but she said she still didn't want to deal with it. At that point I was getting desperate, I told her I'd do anything I could to make up for it somehow.

She asked me if I'd ever been hit in the balls. I thought she was pissed off at me and trying to change the subject, but I played along anyway. I told her I'd been hit a couple times, and it hurt like hell. She asked me to describe it and I said it felt like a migraine, plus I got the wind knocked out of me and almost threw up. She admitted to me that she always wanted to hit someone in the balls, and then she made her offer: I could fool around and have sex with her for an hour if she got to do anything she wanted to my nuts for twenty minutes.

That really caught me off guard and I had to stop and think about it. Getting hit in the balls really sucked, I mean REALLY sucked, but I did really want to have sex. Plus, Chelsea was so sexy... I started imagining doing it with her, and my mind was instantly made up. Sure, I told her, when can we?

The next weekend, as it turns out, her parents would be gone for an entire day and she would have the entire house to herself. It was really hard to wait for almost an entire week, I was getting erections almost constantly, when normally getting hard isn't that easy for me. She kept flashing grins at me when nobody else was looking, and I couldn't help but stare at her body every time I saw her. I jerked off every night thinking about Saturday.

When the day finally came, my heart was racing the whole time getting ready and walking to her house. I wore a cute green knee-length skirt and a gray shirt, put my hair in a braid, put on lipstick and eyeliner. I didn't have many cute underwear, but I had on a push-up black bra and matching panties that tied on the sides. I knocked on the door and tried not to seem too nervous.

She hadn't dressed up as much as me, but she looked absolutely gorgeous when she opened the door. She had no makeup except a little eyeshadow, and she was just wearing a black tank top, denim cutoff shorts, and argyle-pattern stockings. She smiled like this was a perfectly normal thing for her, and pulled me inside. We went up to her room and sat on her bed.

"So," she said, and I blushed and twiddled my thumbs. The nervousness was driving me crazy. Then suddenly she was kissing me, and it wasn't a problem any more. The clothes started coming off and she got on top of me.

I really didn't mind her taking charge of things, and neither did she. She seemed to really enjoy teasing me though, taking as long as possible to get around to anything. We spent the longest time just making out and groping each other, and then she finally mounted me for a while, but she stopped before I came. I whimpered, but she said it would feel a lot better if we took our time. She started going down on me, but mostly she was still just teasing me with her tongue. It felt amazing, but I really wondered when the foreplay would be over.

I think that's when I realized she was stalling for time. She didn't want me to cum! I got up on my elbows and asked loudly, "How much time do we have left?"

She took her mouth off my penis and I saw that it was throbbing and purple, I'd been dying to come for a while now. She gave me an evil grin. "Oh, it's just about time now," she said, and grabbed me by the balls. She squeezed and instantly I wasn't even thinking about orgasms. I let out a long groan and my whole body tensed up. She wrapped both her hands around my sack before I could get my hands down there, and I grabbed her by the wrists but there was no way she was letting go. She squeezed harder and I could feel my balls getting squished together, she even rolled them around in her fists. It was agony, but oddly enough I still felt like I was on the edge of an orgasm.

"Jeez, your cock's still rock hard," she said, and I managed to open my eyes. It's true, it was standing straight up and throbbing. "Is this turning you on?" she asked, and when I begged her to stop, she just dug her nails into my balls, making me cry out loudly.

Then I felt a tugging feeling. She was pulling my balls away from my body, and toward the edge of the bed. She was dragging me by the nuts! I tried to hold her still by the wrists, gripping her as hard as I could, but I just couldn't muster up any strength. I was sore as hell, I couldn't breathe, and I was starting to feel nauseous. When she finally let go of my balls, I was still on the bed, but my ass was hanging over the edge and she was standing between my legs with a smug look on her face. Actually, she looked turned on! Her cheeks were flushed and she was holding my legs apart, giving me lewd stares. I just clutched my swollen sack protectively and tried to wriggle out of her grasp, but it was no use.

"Aren't you having fun?" she asked, and she lowered her face to my throbbing dick. She gave it a long, slow lick and I was surprised to find I was gasping with pleasure. "You seemed like you were turned on... If you didn't like getting your nuts squeezed, I'll stop."

I had to stare at her. Was she serious? She thought I was enjoying that? She seemed serious, though. "It hurts like hell and I feel like I'm gonna throw up..." I coughed, and she pouted.

"Fine, I'll stop then," she said and started sucking me off. Despite everything that had just happened, I was suddenly back on the edge of cumming. I slowly relaxed again and my hands left my bruised nuts. Big mistake.

Suddenly she jumped to her feet and I just gripped the sheets in surprise. With a big grin on her face, she drew her knee up right into my swollen balls, HARD. All the air left my lungs and my lunch almost came up. I was completely stunned, couldn't move a muscle, and she pulled me off the bed and into a sitting position on the hard wood floor.

"You can't fool me, perv. Look, you're just about to cum!" she said, and I could actually feel it was true. My nuts were in agony, but my cock was right on the edge. She punched my bruised sack into the floor a couple times, and all I could do was gasp. Then she stood up and put her foot on top of my balls. She slowly increased the pressure and I was struggling, trying as hard as I could to pull my testes out from under her foot, but she pinned them down even harder.

"Open your eyes and watch," she commanded, and when I just sat there in pain she increased the weight on my poor nuts. "I'll just keep this up until you open your eyes!" she taunted, and I finally managed to open them. My balls were flattened under her foot, and swollen up bright red. Just seeing them like that made the pain even worse. But for some reason, I couldn't look away. She slowly lifted her foot and my dick pulsed, still standing straight up in the air.

Then she stomped down on my nuts as hard as she could. Pain wracked my body and all my limbs tensed up, it was the worst thing I ever felt in my life. But at the same time, I finally reached orgasm! My cock let loose with the biggest orgasm I've ever felt, shooting huge streams of cum up into the air. It was the most amazing feeling of my life. I covered my chest and face and some even made it up onto the bed behind me. Chelsea just watched and fingered herself, and I could tell she was orgasming too.

We just sat there like that, her foot on my balls, for at least a minute. Both of us were breathing heavily and about to collapse. She climbed on top of me and kissed me roughly. This had to be the weirdest experience of my life, but somehow... I didn't care. My mind went blank and I just made out with her, there on the floor, for a few minutes.

Once I recovered she let me use her shower, then I got dressed and left. I was just too exhausted to be mad or to cry or anything like that. I was sore and tired as hell all the next few days, but eventually I felt all right. I just wore loose skirts and walked slowly, I got a few weird looks but I ignored them. I was still confused, though. How could I cum from having my balls stepped on? It didn't make any sense. I couldn't stop thinking about it.

Eventually, after a week, I finally got horny again. I started masturbating like normal, but it just wasn't working. My mind just couldn't focus. I tried thinking about having sex with Chelsea, but I just started thinking about getting hit in the balls again. Somehow that turned me on, though. I finally gave in and remembered how it felt, seeing my nuts trapped under her foot, and came almost instantly.

God, was I some kind of pervert who liked having her balls stepped on now? Did I have this fetish all along, but I just never admitted it to myself? What was going on? I lay there for at least an hour trying to figure all this out, when my computer beeped.

I had a message. It was from Chelsea, asking if I wanted to do that again. I was still trying to figure out what to say, when I realized my hands had already typed 'Yes'.