Biting your lip, you force yourself to resist the urge to jerk yourself off and resolve to keep going.
"Female orgasm," you whisper to yourself, in your new, feminine voice, "remember?"
With some effort you zip your shorts back up, grab the flashlight, and flop down on your bed. The sensation is odd, what with your pillow-like butt cushioning your landing and flowing red hair falling all around you. After clearing your hair out of your face, you grab the flashlight and point it down at your engorged member, which is straining against your shorts more than ever. This is the moment you'd been waiting for since you first laid eyes on the flashlight, the moment you find out what it's like to pleasure your own pussy.
You flick the pink light on again. The shock of pleasure is so intense you let out an involuntarily whimper and clutch at the bed sheets with your free hand. As the final stage of the transformation begins, you are writhing uncontrollably on your bed, struggling just to keep your eyes on what's happening. Your penis, while never the largest, is now rapidly shrinking away. Yet somehow the sensations coming from it only seem to grow more intense the smaller it gets. As you look down at your tight khaki shorts, you can watch the bulge in them becomes less and less pronounced until, finally, you feel a sublimely satisfying sensation that you know beyond a doubt is the feeling of your balls sliding up inside of you.
"Mmmmm..." you moan to yourself seductively and rub your smooth legs together. The feeling without a cock and balls is a peculiar one, but incredibly pleasurable; less crowded, but wetter and more intense.
You turn off the flashlight and sit up, in order to inspect your handiwork. After sliding off your shorts and underwear you lay eyes for the first time on your new pussy. It's... beautiful. A mound of curly red hair sits above the delicate folds below. You brush your fingers teasingly across your pussy lips. The sensation provokes an audible gasp and goosebumps spread across your legs.
At this point, curiosity strikes. "I wonder..." you say to yourself as you switch the flashlight to the brightest pink setting. You point it at your groin and turn it on again. Before your very eyes, your pussy changes slowly but satisfyingly into a more delightfully sensitive organ. Your bright red pubes shorten and vanish as you watch, leaving an immaculate plain of alabaster skin around your slit. Your pussy undergoes only very slight visual changes (your clitoris and labia becoming distinctly more engorged) but the changes in sensation are utterly overwhelming. It NEEDS to be pleasured. You NEED to be filled.
It's all you can do to turn the flashlight off before bringing your hand to your pussy. The degree of sensation is mind-numbing. You rub tight little circles around your swollen clit, and it becomes impossible to sit upright any longer. You're moaning, writhing, worried that someone in the hall outside might hear you, but not worried enough to stop for even a moment. "Oh yes..." you moan, louder than you wanted to. This is WAY better than a male orgasm. There's no way all girls feel this much pleasure when they touch themselves. But then again, you did use the brightest setting on your pussy. Maybe that had something to do with it. Either way, there is no way you will ever masturbate with your old anatomy ever again.
For several long minutes, your fingers circle round and around your swollen, needy clit. As your fingers move faster and faster, they begin to stray southwards, pressing at the entrance to your lips below. So soft, so wet so inviting... You smirk and bite your lip involuntarily. Yes! Now THIS is what you really needed: to be filled.
You start to pull your fingers out... before ramming them back in even deeper. You thrust harder and faster, quickly slipping in a second finger, and then a third. Your whole body seems to come alive as you give in to its desires. You spread your legs wider and begin to thrust your wide hips in rhythm with your hand. Soon, you're moaning like a whore, loud enough for anyone passing by in the hall to hear, but you don't care. You NEED the release, to feel your feminine body quiver and shake as waves of pleasure wash over you. Harder, faster, deeper, harder, faster, deeper, harder, faster, deeper .... AAAHHHHHHHHHH!!! Your body erupts in the most intense orgasm you've ever experienced, contorting and convulsing as your muscles spasm from the sensory overload. You feel your hand drenched in juices as your new sex squirts happily, soaking your hand and bed. When it finally stops, you bring your hand up to your face and lick your fingers clean one by one, savoring the taste of your pussy juices. The flavor is intoxicating.
You bask in the afterglow for a few more minutes, tempted to start all over again. "After all," you think to yourself, "I'm a girl; I can have multiple orgasms." Just thinking those words, "I'm a girl..." produces an odd, fluttering sensation in your chest. This prompts you to decline to start another mind-blowing female masturbation session. Instead you get up and go to the lavatory to have a look at yourself in the mirror.
"Woah..." you have to hold your arms out to keep your balance. Everything is off. You're shorter, your chest is heavier, and your legs are trembling from the amazing fingering session you just gave yourself. You have to work very carefully just to stumble over to the mirror.
Staring back at you in the mirror is a sexy, 5' 4" redhead coed with an hourglass figure and B-cup breasts. You scarcely recognize yourself. You're... sexy. Many familiar features remain, your hair, eye, and skin color are all the same, but you've been totally transformed. Your jawline is softer, your waist narrower, your hips wider, and your ass... your ass is fucking huge. "Wow..." you whisper under your breath,. Sitting down is never going to be uncomfortable in this body.
The sound of your changed voice redirects your attention to your face. Before, you were an uninteresting, nerdy guy, but you make a downright attractive girl. A smattering of freckles, full, pouting lips, bangs swept to the side, and a pair of glasses give you a sort of sexy smart girl look that you would find irresistible. In fact, you sort of look like a girl you once had a crush on in one of your science classes.
You can't help but smile and strike a pose, flipping your hair. You put a hand on your hip, pretending to take a selfie, and giggling at how cute you feel. You're female and, to your surprise, you're actually loving it.