Chapter 36
by 
The Doctor
What else do you modify?
His manliness.
Your brother, so proud of being well endowed and very strong… you make sure he’s now got a tiny little penis and can’t gain muscle, however much he might try.
But that’s not all. You also want him to be permanently horny.
Any more changes?
You have been magically transformed into a girl. Avoid getting knocked up!
Updated on May 31, 2026
by salat999
Created on Nov 26, 2013
by generaljiggler
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