My life took a strange turn when I had my body permanently stolen by my girlfriend Maggie's little sister, Ellie. She had a huge crush on me, but being so much younger than me and related to the love of my life meant that she had no chance. That is, until she used some spell that performed a one-way body swap, leaving me stuck in her teenaged form forever. And believe me, I tried to use the spell on just about everyone I knew to get out of this body, but to no avail. As gross as it felt to become my own girlfriend's little sister, I was stuck. I couldn't even tell anybody the truth without any sort of proof, so my only option was to sit and watch Ellie steal my life.
Once she was in my 22 year old body Ellie finally realized how gross her former infatuation with me was, no longer influenced by her body's raging teenage hormones. Instead, she couldn't deny just how attracted my body was to her sister and picked up our relationship right where I left off. On the other hand, I was now burdened with the horniness of a young girl and all the attraction that came with it. As much as I loathed it, I couldn't deny my new crush on Ellie in my body. Logically, I missed being with Maggie and tried desperately to rekindle my attraction to her. Unfortunately, Ellie was as straight as an arrow and, even if I could force myself to like women again, she would only ever see me as her annoying little sister. And while I didn't want to admit it, the thought of being with her now grossed me out, given our new status as siblings.
I was forced to watch on in despair everytime Ellie came over to visit her new girlfriend. They would scurry upstairs to her bedroom and, before long, the sounds of a creaking bedframe would pierce through the thin wall between our rooms. I couldn't stop myself from listening to their hushed whispers. "Fuck... that feels so good." "Mmh, god. We need to be quiet before Ellie hears us." I felt so helpless, reduced to an outsider in my own relationship. Despite everything, I still couldn't stop my small hand from creeping underneath the pleated skirt I was forced to wear as a part of Ellie's school uniform, coming to rest on the soft mound radiating heat through my white panties. My tiny fingers began moving against my better judgment, rubbing small circles around my clit just as I used to do for this body's sister. I matched my movements to the creaking sounds and moans from next door, trying to imagine myself back in my body and fucking my girlfriend senseless. Yet again, however, my body betrayed me, only conjuring up images of being in her place, with Ellie's new cock filling up my tight, virgin pussy.
I bite my lip in frustration, but can't stop my fingers from continuing their assault on my crotch. My annoyingly squeaky voice starts slipping past my lips as I quickly approach an orgasm, the stench of Ellie's arousal rising from between my thighs. Before long, both me and my sister are climaxing simultaneously, moaning the name of the same man. The name I used to go by. Once my thighs finally stop shaking, I cringe at the slippery liquid coating my fingers and crotch. Wiping away the evidence of my female arousal on the pink sheets beneath me, I feel myself struck by a rush of emotions and I struggle to hold back tears. I know I'm only partly upset because of the swap, having been reduced from a handsome, promising guy in a loving relationship to a pathetic, horny young girl getting off to her sister's boyfriend. Somehow more upsetting to me now, however, was knowing that the amazing cock that just made Maggie cum will never do the same to me.