Erk. Even though she'd do it, because she had no choice, she didn't like guys. Then I had a thought.
"Every part of my body except my cock will change to look like a pretty girl."
Even as I said it, I felt like my body was on fire! My body shed much of it's body and facial hair, even as I felt my scalp tingle. My hands became smaller and delicate, the nails longer. My feet became smaller as well, and I lost a lot of weight. My muscles lost tone, and I realized I was shrinking.
My hips widened and my waist narrowed, as some internal juggling went on. I lay back against the bed, gasping for breath, as my nipples grew in size. Then a pair of small, but sweet breasts began to form.
Alison looked both frightened and aroused by my change, but without me to tell her what to do, she could only stand and watch.
"Joey! Joey, what's going on?!"
I looked at myself in the mirror. My features were more delicate, and I was pretty cute, all things considered. My hair had grown to shoulder length, and while I wasn't hot like Alison, I liked what I saw. My manhood agreed, and I knew I had to get some release...now!
I lay back on the bed. "Alison, please suck my cock? I know you'll do a wonderful job."
She climbed up on the bed, supporting her weight on her hands and knees. Her large breasts dangled over my cock. She grinned at me, and put her head down, her pink tongue extending to lick the head of my dick.
It was my first time, and it already felt amazing...but I didn't want it to end before it began! Under my breath, I wished I could hold on long enough for Alison to finish. The swelling in my member became less painful, and I lay back to enjoy it.
She took me in her mouth, and began to suck, her tongue sliding along my shaft. I didn't want her to stop!
"Ali...Alison...you can hold your breath for half an hour...so take a deep breath, kay?" It was hard to get that out!
Her chest seemed to expand, which made her breasts seem even more ridiculous as she gained a greater lung capacity than any human girl. It looked weird, but screw it, I could change it later! She took a deep breath, and went down on me again.
When I finally came I exploded in her mouth. "Suck it all up, baby.."
And she did, swallowing my cum until I had no more. "Do you feel better, Joey?"
"Oh God, that was amazing. You were wonderful!" She was so happy she bounced a little. I noticed that her breasts were sagging forward.
"I guess having big tits isn't always a good thing, huh?"
She shook her head.
"Ok, first of all, your lung capacity will remain exceptional, but go back to human limits. Then your breasts will shrink to um, say, a C cup."
First her chest deflated, and then I watched as her massive breasts dwindled away. I always thought the bigger the better, but looking at my own form, I could see how small breasts could be nice too.
"Ooh. That feels great."
"You look awesome too. So you like girls, not boys? Can you show me what that's like? You know, making love to a girl?"
She pointed to my cock. "What about that?"
"Pfft! My cock will vanish and be replaced by a pussy, and I will become totally female."
Ow. I wish I'd given that a little more thought. Several minutes of agony passed as my physiology rearranged itself. When it was over, I felt a little strange, and reaching down, found I now had nothing but a damp slit where my dick used to be.
Alison seemed to like what she saw. "So...can you show me now?"
She nodded.
I really can't explain the difference between sex as a guy and sex as a girl. Maybe it's because Alison had more experience with girls, but suffice to say, it was amazing. I felt like an electric current was running through my whole body, and I admit, I was pretty damn loud.
I vaguely wondered where my family was, since I'd wished them out of the house, but I was too tired. I asked Alison to lay down and hold me while we slept and passed out.