Alex says, "yeah. Is there more in your... world?"
You realize she's starting to get worried about you. You try and explain everything to her, "there's a tube that males have on their crotchs, and girls have a hole, and you stick one into the other."
Alex seems a bit shocked, "that's so gross. I'm so happy I don't have a hole down there, well accept for my urethra of course." You watch as she rubs her smooth crotch. You feel so sad she doesn't have anything. Alex looks at your expression and says, "do you wish I had a hole?"
You reply, "yeah. It's a bit weird seeing a girl without one."
She asks, "Wait? With special parts how would you change genders?"
You reply, "Its way harder. And people don't just have one weird part, men have deep voices and a lot of hair, and women have lumps of flesh on their chests."
Alex seems shocked, "well, I'm happy I'm not like that. Even if you aren't. How about we cuddle a bit more."