"I think I'll test it myself on the lowest setting." Edgar said "A little extra testosterone shouldn't hurt."
Ron felt a little disappointed and asked "But why risk yourself? I could-"
"No, no need. I'm taking the risk and I'd rather not move this thing around too much before we get what it really can do."
"But you don't know-"
"What's there to know?" Edgar said ignoring his techy friend "You just set the gender switch to the opposite of what you want, and then set how much puberty you want." Ron could've told Edgar about how the Puberthere was sandblasted a little and repainted so the controls were in fact accurate. He may have told him if Edgar just decided he'd be testing it alone, but after he scoffed at His own expertise.
"Alright, well... have fun."
That night Edgar with a smile flipped the gender bender switch from off to on with assuming that on would be off. With the thing being on Mode 1 maybe he'd have a few more hairs, a few more muscles, and maybe a few centimeters taller. With the puberthere sucking Edgar fell asleep. Little did he know he would stop being a he. While yes he grew taller, but it was only a few millimeters at most. In fact to his dismay certain parts started to shrink, in some cases to nothingness. What body hair he had shrunk in as breasts formed and grew and grew. Not the biggest in the world, but with the Puberthere's influence Edgar's assets were comparable to the girls in the grade just above hers.
Thus when Edgar woke up she was confused at the boobs on her chest, and then went to the mirror in her room examined her face, her slightly longer and silkier hair, and the roundness of her posterior. In her male pajamas she felt... weird... Then a knock on his door occurred as his mother than asked "Edgar? It's time to get up. We're going to be going on a luncheon." Then before Edgar could object his mother opened the door to see a teenage girl in his son's pajamas, and a weird dehumidifier in the corner. Edgar looked in horror as his mother got a weird smile on her face.
"Oh, Edgar! You should've told me you wan-"
"NO I DIDN'T" Edgar screeched "I got a broken pubertaway to get more manly! Not this!"
His mom took a look and said "But you set the gender setting to on."
"Yes, but it should've been reversed!"
"I suppose it may have been... or may not... Regardless..." His mother thought for a second trying to twist the scenario in her mind "As punishment for going around our back and ordering something so experimental... We're having some mother daughter days together starting now! OH, CLAIR!!!" His mother shouted calling for her personal maid who showed up kinda like a ninja.
The attendant in a stereotypical maid uniform asked "Yes, Milady"
"Could you please measure my daughter here and get her a nice dress that'll match nicely with the one I have now... Also probably some underwear... and" Edgar's mom leaned into Clair's ear and whispered a few more things.
"Yes, Milady" Clair said and then she left to go get a few things and that was the start of the day for Edgar who would be his mother's little play thing for a little while.