You decide to get a better look at yourself in the mirror, so you can flex and admire your new muscles. Staring in the mirror you are surprised that your face still resembles your stepsister, Tiffany. Your head is larger, but the resemblance in unmistakable. You look in your tight shorts and are surprised to see that you still have a vagina. You are confused why you are still female. Then you remember your wish. You asked to be a muscular jock, but you never wished to be a male jock. The wand had simply bulked up your stepsister's feminine body. You hear the doorbell ring, and know that her boyfriend, Mitch, must be here. You are about to correct your mistake, and change your gender when you get an idea.
It might be kind of fun to stay this way for a while, you think. Imagine the embarrassment Mitch will feel if he is overpowered by a girl.
You look over your muscular body in the mirror. You look pretty strong, but you remember that Mitch is pretty big. And because he is male, he still might have a strength advantage. You decide it is better to be safe than sorry, and make another wish with wand.
"Wand, make me 6 inches taller, and twice as strong as Mitch."
Your body begins to grow again, stretching taller. As you grow, your arms and thighs expand, filling with dense muscle. You feel intense pleasure as you get stronger.
Wow, you think. I have never felt so good in my entire life. A guy could get addicted to that.
After 5 minutes, the growth is over. Your clothes are in tatters on the floor. You decide you better get changed before you go downstairs. In your room, all of your clothes have changed. They are now feminine, and tailor-fit for your massive body. After getting dressed, you go downstairs to meet Mitch. You see Mitch at the bottom of the stairs, and approach him. You are now taller than him, and look down at him with a smile.
"Hey, Mitch. What's going on? Want to arm wrestle? " you say, flexing your large bicep in front of his face. It is almost as large as his head.
"Not today, " grumbled Mitch.
Your step-sister enters the room, and you are surprised to see that she looks exactly like you.
"Hey, sis. Ready to go work out? Mitch is coming with us today, " says Tiffany, looking at you.
Then you realize that you must now be twins. Whatever shape you change into, Tiffany will look identical. You are about to use the wand to correct it, but then decide it doesn't really matter. Besides, you are eager to test out your new strength at the gym. You like being really strong, and what to find out exactly how strong you are. You grab a bag, and place the wand in the bag for safekeeping, just in case you need it. Then you join Tiffany and Mitch in the car and head over to the gym.