Well, if he was balless then so was everyone else. He'd heard about issues like this before, people changing universes due to Quantum experiments. That's the only way this could be the case. Though he'd rather have ended up in literally any other universe.
Justin put on his clothes. Though they were tighter then his old clothes. It felt weird to be so flat in front, he felt like a little boy again.
He wanted to see Melissa, she lived all the way in the city so he called up an uber. He had always hoped he could live in the city some day, New Jersey was a shit hole compared to New York, living in a different universe didn't change that.
In the uber Justin had some time to research his new world. Neutering was commen, as sperm and egg could be made artificially here, a few very liberal parents kept their children in tact but it was very taboo. Intact people were called breeders insultingly. Testosterone and estrogen were illegal to take artificially, and a few states made neutering mandatory. Justin was lucky to have his penis, nearly half of all people got their penises removed along side the testicles.
Eventually Justin made it to Melissa's. He opened the door to see her naked. She looked a bit embarrassed but it was clear being nude wasn't what it was in his old world, this was closer to catching her in her underwear. Justin should have expected her to be like this but he was disappointed anyway, she still had the same cute face, that beautiful red hair and big green eyes. But the rest of her body was so much different, her breasts were non existent, just flat like a boy, even her nipples were small and undeveloped, and her hips were boyish too. Gone were the days of her beautiful curvy body, all that was left is this skinny neutered creature. She had long white scars on her belly where they must have removed her ovaries and uterus, and between her legs was a small tiny undeveloped vagina, not much different then what she would have had as a child.
She looked up at you blushing, "Oh, you caught me without my clothes. Just wait a sec I need to put some on."