Further experimentation on my sister

I sat on my couch as pervy thoughts started forming in my head. I started to think that the things weren't just coincidences or higher powers messing with my life. I was altering what people were doing through some form of mind control. I immediately decided to test out my theory on my sister.

"Lift up your shirt and bra" I said. She could only obey. She lifted up her purple shirt, revealing her gorgeous teenage tits. She gasped as she realized what she was doing and quickly pulled her shirt back down, muttering an apology, however I didn't hear it.

Seeing as I could directly influence what anyone was thinking/doing, I stripped down to my bear body. My sister gasped and shielded her eyes, but it told her that it was normal for brothers and sisters to watch TV naked in the mornings. She put her hands down, but I noticed her eyes weren't glazed over. I took a mental note of that as I sat down.

I looked over and noticed that she wasn't wearing a shirt anymore, which kick started my raging hard on. My erection caught my sisters attention.

"Wow, that dick is small!" She said, laughing.

"Shut up!" you say, looking down at your member. No matter how much you wanted to deny it, she was right. My unfortunately small package only consisted of a skinny, 2 inch dick. I sighed, wondering what it would be like to have a raging, 8 inch, veiny, thick dick. I heard my sister gasp, which brought me back to the real world. I looked at her, and followed her gaze to my dick.

I gasped as well, because my dick had gone from small and pitiful, to massive and heaping. I looked back at my sister, whose eyes couldn't leave my crotch. I noticed that her pants were developing a wet spot on her crotch as well. She was being turned on by my new monster dick.

"I thought my dick was small" I sarcastically retorted. My sister, still admiring my cock, was dumbstruck, "Take a picture, it'll last longer" I continued jokingly.

"would you... Could I to- touch it?" She asked, ignoring what I had said. This surprised me, because I hadn't commanded her to actually have any feelings for me.

"Sure, you can touch it. But the more you look at it, and the more you touch it, the hornier you'll get" I said. I immediately saw the reaction of her face. Her usually pale skin has turned a bright red, and I saw the stain at her crotch grow even larger.

"I'm gonna take off my pants, is that ok with you?" She asked, trying to seem nonchalant.

"Go right on ahead," I said, "but you'll only get hornier"

"I'll t- ta-, I'll take my chances" She said, panting heavily. She had took off her pants and a new stain was already growing on the sofa cushion where she was sitting. I slowly and deliberately moved my hand to her crotch. She caught sight of my motions, but did nothing to stop me. When my hand was just above her crotch, I stopped completely.

"Do you have a brother complex?" I asked her.

"Yes! Yes I do! don't stop please!" She replied. With that, I plunged