You wake up at the sound of your alarm, thinking today will be like any other day. Staring at the white walls of your apartment you quickly turn to turn off your alarm. So far everything seemed normal. You look out at the city outside your window, taking a second to orient yourself upon waking up.
You suddenly notice you can't feel your usual morning wood, it's not unheard of to wake up soft but it's still weird. In fact your pajamas feel weirdly tight down there, it's a feeling you can't quite put your finger on. Even without morning wood you decided to masturbate like usual. You reach for your dick but you can't find it, confused you look down at your crotch, removing your pajama bottoms, to your shock you find nothing but a feminine slit down there. No dick, no balls, just the flat crotch you'd expect from a girl.
You look at your naked body in the mirror, you look kind of like a trans boy. You're definitely male, mabye a bit slimmer but no major difference in build. There was only one huge difference, you had a vagina instead of a penis.
You though about telling your parents but really didn't want to. You called up your girlfriend, she would understand, you called her up and before she can even get a word out you blurt, "I have a vagina!"
She sounds confused, "of course you do? Is this some weird way of asking me for sex?"
"Sex? I have a vagina? Why would you be interested in me now?"
"I mean, you had one before? And I definitely wouldn't want to fuck someone without genitals. You're tired, you probably had a bad dream, drink some coffee."
Before you could say anything more you pulled out your phone and looked up human anatomy. To your surprise it showed both men and women with vaginas. As far as you looked nobody even knew what a penis was.
There must have been a mishap with the Quantum machine that they built downtown, now you're stuck in a world without dicks forever.