Nee-san's Obsession (part 1)

Apologies if some captions may have some… unusual themes, and that this one doesn’t really line up with the source material. I just write whatever comes to mind and post whatever makes the cut.

Part 2 at: https://sayonaraxsunshine.blogspot.com/2020/09/nee-sans-obsession-part-2.html

Sauce: https://danbooru.donmai.us/posts/2568144

Text:

My older sister always had a weird obsession with me. Other people would tell me that it was disturbing, but to me it was normal. I guess I just grew up with it. Our parents never made a big deal about it, and I actually would talk to her and hang out sometimes, though she remained mysterious. As I got older I actually began to think she was kinda cute, but of course I could never let her find that out.

One day when she was out at university, I snuck into her room. I don’t remember why I did it - she usually never lets anyone in there. Long story short, I found some of my underwear and other things in there. I never ever got mad at her before, but this time something got to me.

I had a secret of my own, as I was one of the very lucky few that had magical potential. I had never partaken in the dark arts before, but I was so ticked off that I opened a spellbook for the first time in my life. I looked through various curses, finding a body possession spell. I did have to be careful, as I would take on some of her habits and mannerisms while using it. I also had to use a spell to cover my tracks, so that my absence would not be missed. After going over and triple-checking everything, I was ready.

I waited hours for my sister to return home. As soon as she stepped past the door, I muttered the incantation. An intense chill washed over myself. I found myself standing at the entranceway to our house. Everything looked weird, then I realized that it was because I was standing 5 inches taller. Then I felt a draft between my legs - or her legs. She was wearing a skirt, and suddenly my thighs felt very exposed. Feeling overwhelmed, I leaned on the wall to prevent myself from falling over. I felt her red hair moving along the back of my neck, and her modest chest hanging in front of my… chest. I put my hands on them, and felt my heart racing.

I realized I had no plan with what to do. I stumbled over to her room and logged onto her computer, and posted all of her embarrassing pics to her Twitter. I looked through all her files and porn, finding some disturbing things, but as much as I wanted to be repulsed, something in me made me keep looking. I must have sat there looking through it for hours before eventually falling asleep on her bed