Centaur girl
"A centauress? I can manage that" said Nic with a cocky grin.
"I didn't know the terms were different..." said Julie
"That is what you meant though, isn't it?" said Nick. "You didn't want..."
"Oh no no, definitely not", said Julie. "But can you make me as strong and fast as my brother without doing that?"
"Of course", said Nick. "If you don't mind being more muscular than most women, that is..."
"I don't mind", she said. "Sounds kind of cool actually..."
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Julie looked in the mirror after her treatment was done, and liked what she saw. Her abs, arms and horselike lower body were as muscular as her brother's (but, if anything, looked bigger on her), but still maintained a feminine hourglass-ish shape - amplified by her new E-cup breasts.
Wait til Derrick sees me...