Not quite yet

Am I done with Katherine? I’ve already proven that my logic alteration device works. There’s really no need to go any further. That would be… wrong. So deliciously wrong.

“Not quite yet, Kathy.” Adam openly gazed at his hot older sister’s big breasts, no longer worried about being yelled at or slapped for being a pervert. When one controlled what defined perversion, anything was possible, and Adam fully intended to get the most out of the little device that had already changed so much for him.

Katherine shrugged and stood in place

“Would you push your tits together?”

Katherine’s bored look was quickly replaced by one of indignation. “No, I’m your sister! I’m not a sex object for you to get off on, you creep!”

Adam smirked. “Then why did you show me your tits?”

“Because I should show you my tits whenever you want, you know that!” Katherine only seemed to get angrier. “That has nothing to do with,” she cringed audibly, “what you just asked me to do.”

Adam smiled, thrilled by the wrongness of having power over his older sister. This was so much fun!

“So anytime I ask you to show me your boobs, you’ll do it?”

“Yeah, obviously!” Katherine said.

“What if we’re around other people, like Jackie or Mom? What if we’re in public?”

Katherine paused for a moment and adopted a thinking expression.

“I… I guess I would,” Katherine furrowed her eyebrows. "I'm not sure."

So some variables can affect the logic device’s alterations. Interesting. I wonder how the logic device would affect a person's attitudes and emotions? In private, Kathy seemed almost entirely neutral about showing me her breasts, as if I had asked her to scoot over or pass me a plate at the dinner table. Maybe it’s time I changed that.

“That’s your bed over there, right?” Adam pointed to a queen-sized bed with light blue sheets that sat at the end of the room opposite Katherine’s desk.

“Yes Adam, that’s my bed,” Katherine rolled her eyes.

“And you sleep on your bed.”

“Thank you, Captain Obvious!” Katherine shook her head. She scrutinized him with those gorgeous blue eyes. “You’re acting really weird today. Weirder than usual.”

Oh, if only you knew.

“You like it when I look at your tits.”

Katherine stilled, her face completely blank. Her plump lips opened again, revealing the tip of her wet tongue.

Adam didn’t know it was possible to get harder than he’d been when Katherine had first shown him her breasts.

Those lips… that tongue…

Adam visualized his older sister kneeling down and servicing him with her blowjob lips, her warm, wet tongue worshiping his cock while he sat in a throne like a king.

I can have that if I want, right now. I can have anything.

“Yeah, I actually kind of do,” Katherine smiled. She cupped her breasts. “Hey, bro. Come over here and get a better look at these.”

Adam was too stunned by her invitation to think coherently and moved closer to his older sister. He crouched in front of her.

“Wow…” Adam whispered when his face was close enough to almost touch Katherine’s right breast. His breath wafted over his sister’s breast, causing goosebumps to form around the areola. He wanted to lick her nipple, but he reminded himself that he hadn’t altered how Katherine would perceive such an action and stopped.

Adam was also reminded of the fact that he had another hot sister in the house, along with his voluptuous mother who he had been dying to test his device on.