Sibling Possession

“Come on Cass,” I complain, “did you really have to do that now?” I glanced down at the mess in my pants I was left with as my older sister, 21 year old Cassandra, giggled standing next to me. She grinned as she looked down at me, her long light brown ponytailed hair swaying back and forth. “Sorry Ken,” she began, “but I was kind of pent up and you were right there so I…” her voice trailed off.

I smiled as I gazed at her, this was a normal occurrence for us so we didn’t take it too seriously. “Alright you’ve had your fun Cass,” I say as I stand up, my soaked underwear making every movement uncomfortable, “it’s my turn now.” Before she can react I bolt towards her 5’3 body, phasing into her and taking control.

If you haven’t caught on by now, my sister and I both have this ability. It’s part of the reason why we’re so close actually. Two people possessing the ability to possess others is something which tends to strengthen your sibling bond. We’re not sure exactly how we got the powers, but it all started on one unremarkable day when I was horsing around and fell from the banister, about a 15 foot drop, onto my sister. Instead of falling on her, however, I felt myself lose all bodily feeling for what felt like not even a second. When I had feeling back I was in my sister’s body. I was able to myself out and let her try to run into me. Lo and behold, it worked. We stood in other family member’s way through the years to see if they would possess us as well but it’s never happened. Now, as far as we know, it’s just us two who are blessed with this power.

That leads us to today, where we’ve grown much closer. Probably closer than siblings should be if I’m being perfectly honest. We were both in our teens when we found our powers so naturally, us being opposite genders, things started to happen. It started with just a peek, then just a feel, and next thing we knew we were using each other’s bodies to get off. Now sometimes even in our original bodies we sometimes touch each other. We do, however, have hard lines we don’t cross. We do not have sex with each other… per se.

We were both too scared to try to possess people other than each other, because it involves running full speed into someone and we weren’t sure if it was just a sibling thing. One day, at school sports day, the opportunity presented itself in a game of flag football where I can bolt into someone and make it look like an accident. I ran into one of my classmates and phased right into her. I then promptly excused myself to the restroom to explore but more importantly we found out then we can possess anyone.

Going back to our no sex rule. My penis cannot enter her body, but nothing says it can’t enter someone else’s body that’s piloted by her. Hence began our practice of possessing people and using their bodies to fuck each other. Is it unethical? Maybe. Will they find out? Nope.

So that’s our situation. Cass is 20 and in college and I’m 18, just entering the same college. This is our first time in school together since my freshman year in high school so we’ve decided once the semester starts we will make full use of the opportunities presented to us.