Claire felt something on her crotch. It felt so strange to have an appendage coming from her crotch. It was so weird having all that skin dangling down. It was so weird and loose, pretty uncomfortable to some extent. Looking down at herself was so jarring, she has been fingering herself just a minute ago and now she had a dick, and what a dick. Her new member was much bigger than she had expected, almost the size of her arm.
Then Claire noticed the first sign that something was wrong. Even though she had a dick now, she had no balls, just smooth skin in the space her pussy used to occupy. This detail didn't worry her, if it wasn't just something to differentiate boys from girls at birth. She then decided to have her first handjob, eager to experience her first male orgasm.
Claire stroked her member with both hands, realizing that the sensation wasn't much different from the one she was already familiar with on her clit, as if she had just been stroking an overgrown clit. Having the liquid coming out of the tip, which she concluded was precum, made her believe that the sensation wasn't as different as she imagined, but when she came she was sure that something had definitely gone wrong. Instead of experiencing the male orgasm, Claire was hit by the well-known female orgasm, and nothing came out of her dick.
After a not-so-satisfactory orgasm, with her dick softening, Claire researched human anatomy on the internet to see if she could find out where she could have gone wrong. That's how she realized that, having just changed the word vagina to penis in the book, she actually changed the genital, but that was it, everything else remaining as it was. Women still had a uterus and ovaries, as well as no prostate. They were still on the receiving end, as they all had dicks but they were much bigger than the men's, so they were the ones who fucked their urethras. Looking at some images of lesbian sex, she saw that in the new reality women used strap-ons simulating dicks smaller than theirs, which were placed on the tip of their dicks, and they used them to fuck their partner's dick or ass.