Numbed the blissful feeling of getting her cockhead sucked and balls cradled, Julia had twisted the light in the wrong direction. Instead of turning it bluer, it was at a quite intense pink setting.
But what surprised her more was the fact that she had shone the pink light too low – around the taint of Samantha. Instead of the small dick shrinking and turning into a pussy, the folds of a vagina opened upon underneath while the cock remained unchanged.
She had managed to turn her mate into a hermaphrodite, a futanari!
This sight turned her on so much that she came without any forewarning. Four powerful spurts caught Samantha completely by surprise. The first jet hit the back of her throat, causing her to recoil and start coughing. The second splashed right in the Samantha's left eye causing her to cry out in pain and the last two streaks of cum landed in her hair.
This vocalisation caused some of the other girls to wake up and ask if all was alright.
Luckily for the two of them, Sammy quickly found her wits and came up with an excuse: "I'm so sorry! I just stubbed my toe climbing down". And with that she hurried out of the room to wash the cum out of her eye and hair. Fortunately the light coming in from the lamp post outside was too dim for them to see anything suspicious.
The others soon fell to sleep again once they had realised that nothing serious had happened.
Julia was lying there by herself again. Her biggest fetish was hermaphroditism. She explained it to herself because she really loved her own cock but as a girl was supposed to have a pussy.
So it did not take much time to decide to transform herself into a futanari too. She twisted the colour a bit more towards the pinkest setting and shone it at her taint, being careful to pull her balls up to get them removed by the light.
Once she was done, she reconsidered and bathed her testicles in the pink light too, making her vaginal opening longer, transforming her into a big-dicked, ball-less hermaphrodite.
Then she remembered that she would need a prostate to produce cum (semen-free of course). Knowing she always had a way to reset everything, she became bolder. Julia twisted the light back to a very intense blue setting, pushed it into her newly formed vagina, facing up and front and switched on the light for a few seconds.
She could feel something shifting around and hoped that she correctly remembered the male anatomy. Then, just before Samantha came back, she switched off the flashlight.