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Fose Girlfriend's Little Sister

Author: @SwapperTopper • Published: 2022-04-14 • Length: 599 words • ♥ 125 likes • 🌐 View on OpenTGC ↗

I always had a suspicion that my girlfriend's little sister had a crush on me, but this just confirms it. ​ ​ On most Saturday nights I would be out with girlfriend, but this weekend she happens to be out of town visiting a friend. I fully planned on taking advantage of this free time with a much-needed gaming session. However, before I could turn on my computer, everything around me started to shift. One second I was in my room and the next I'm back at my Girlfriend's house. I was extremely confused how I got there. I looked down and was greeted by a vibrant pink vibrator in my manicured hand. Quickly, I got up and ran to the nearest mirror. Staring back at me was an exact replica of my Girlfriend's little sister Stacy! After a brief examination of my new body. I go back to the living room I awoke in. "Hello", I call out, not getting a response. "I guess Stacy was also taking advantage of her free time", I say, laughing to myself. I walk over to the bean bag I had awoken on and sit back down. My male body can't help itself, I have to explore. ​ My new small hands begin to move almost by themselves. Brushing over my smooth skin, stopping at my new breasts. "God, they're so firm", I exclaim. While playing with myself, my eyes land on the pink vibrator. ​ ​ Before I know it, I am inserting the vibrator into my newfound womanhood. As I slowly build speed, a warmth starts to spread all over my body. "Oh my god", is all I can whimper out as my hips start to join in the motion. After a few minutes, I feel like my body is going to explode. Faster and faster, I continue to thrust the vibrator. Until, finally, my whole body tenses up and an explosion of pleasure washes over my entire body. As I am gasping for breath, relishing in the new experience I just had, my own body walks through the front door. ​ ​ "I see you're picking up where I left off", my body said. "Stacy?... Are you in my body?", I ask. "Sure am." Stacy said. "Are you enjoying yourself there?". ​ I instantly blushed, god knows I was. Instead of answering her, all I manage to do was bite my finger and stare. Stacy proceeds to explain how she was thinking about me while she was masturbating, and that when she came, the FOSE triggered the swap. ​ "Is it reversible?", I ask. "I'm not sure." Stacy says. "But I do have an Idea on how to reverse it." ​ Stacy grabs my hand and leads me to her bedroom. Once inside, Stacy rips her clothes off her new body and throws me on the bed. ​ We never ended up swapping back... but after we tried Stacy's idea, I don't think either of us cared.