Sarah was merely getting started. This power was too great to stop with just a bunch of jocks. Some part of her burned in delight, thinking of how she'll face her own new sister at dinner tonight. It'd be very funny to tell their parents they have two daugthers to raise now. But as far as she was concerned, her own brother and his formerly testosterone-laden compatriots were but a taste. And what a wonderful taste it'd be.
She began to play out an ideal world in her own mind, where she was queen. Any man who crossed her, or would dare deign to speak to her, would live out the rest of their days as a female. Why not? She was female, and it only made sense in her twisted mind that her own percieved beauty was contagious. Her classmates would be a nice start. But it was time she went for a bigger prize.
The entire school.
Like everything she's felt in her life when determined, it all went by in a blur. It took her no time at all to crash the school assembly. Unceremiously she shoved aside the current speaker and grabed the mic.
"Is this thing on? Ah, yes. My fellow peers and students, I have an important announcement to make..."
A fiery glow could almost be seen in Sarah's eyes.
"... It's this. You're all girls. Girls!"
... Just like the sports field, so did every man in the room begin to cringe as they felt their own internal anatomy change. They could even smell their new pheremones going into full drive as estrogen claimed its place in their systems.
"What?!" snapped one young man who was sitting in the front row, whom Sarah didn't see.
Sarah was more than happy to single him out.
"They're all girls. Didn't you notice? YOU are a girl too!"
The poor, brave young man clutched his side -- soon to join the others.
Before anyone could confront Sarah, once again she made off -- leaving some very confused young ladies left flabbergasted at their now unescapable fate.