Russian on AO3: https://archiveofourown.org/works/61093951
English on AO3: https://archiveofourown.org/works/61093984
English on ATF: https://allthefallen.moe/forum/index.php?threads/peter-the-second.84577/

Peter the Second
(casual, consensual, drowning, no sex)

Petya dived in with his head and swam underwater to the other shore. He managed to swim across the small lake in one breath, so now the white-haired boy tried to swim along its length. And at first it even seemed to him that he was doing quite well. But when Petya finally surfaced for a necessary breath of air, he was disappointed to find that he was only in the middle of the lake. After all, it was noticeably more long than it was wide.
“Hello!” he heard suddenly from somewhere to the side.
Petya turned to the voice and saw a girl standing on the shore. It was the third summer since his parents had bought a dacha here, but the first time he had met someone else on the lake. After all, it was a rather secluded spot at the very edge of the community. Maybe her family were new owners here too?
“Hello!” Petya shouted back when he had caught his breath after the swim.
And since shouting across half a lake is not particularly conducive to the development of conversation, Petya swam towards the shore, where the girl was standing. She, in turn, without wasting time began to undress.
“What’s your name?” the girl asked, throwing her T-shirt to the ground.
“Petya,” the boy answered.
“And I’m Nora,” the girl introduced herself, now taking off her jeans.
“Nora?” Petya repeated the unusual name.
“Well, the full name is Eleanora,” she answered hesitantly, embarrassed by her own name, and at the same time shamelessly parted with her panties.
“Beautiful name,” said Petya.
“I think it’s too pretentious,” said Nora, with her arms at her sides. “Do I look like Eleanora?”
By that time Petya swam close enough to stand waist-deep in the water and get a closer look at the now naked girl. She had swarthy skin, black hair down to her shoulder blades, and black eyes. She must be from somewhere in the south. As for her name, Petya said this:
“But you can’t be confused with anyone else. There are three Petyas in our class with me. So the teacher calls us Peter the first, Peter the second, Peter the third.”
“Is that bad?” Nora shrugged her shoulders. “Just like a tsar!”
“Maybe it’s good for the first one,” answered Petya. “But I’m the second.”
“Well, that’s... also a tsar?” Nora suggested unsurely.
Meanwhile she ran towards the water and plunged into it headlong, then swam past Petya before coming up.
“Technically, a tsar,” Petya sighed, turning to follow the girl and walking slowly toward her along the bottom. “Only he died at the age of fourteen.”
“Then you should die too,” Nora suggested.
“Why should I?” Petya was taken aback. “I’m only twelve yet.”
“Because,” Nora explained, “it would make one less Petya in the class.”
“Hm,” Petya smirked. “That it would”.
Nora swam up to Petya, who by that time had waded into the water up to his chest, and stood beside him.
“Come on, I’ll help,” she said, putting her hands on his shoulders and lowering the boy to her knees so that his head was under the water.
“Ow,” thought Petya, “she’s serious?”
He had only agreed jokingly. And did he agree at all? He agreed only to the fact that this way there would be less Petyas in the class, he didn’t agree to actually do it. But oh well. Petya exhaled the air from his lungs. What was he gonna do, come back up after he kinda already went with drowning himself? And he wasn’t at it alone too, he had Nora helping him. They didn’t even really know each other — they’d only asked each other’s names. And now she’s already helping him kill himself, as if he were her own brother, no less. Is that how they do it in the south?
Petya’s lungs were burning more and more. He hugged Nora underwater and pressed himself against her before he dared to inhale the water. Yuck, it was disgusting! Petya’s whole body involuntarily twitched, and in response Nora pushed harder on his shoulders, pressing the boy against the bottom and against herself. Would drowning be more pleasant in sea water? By the way, if Nora is from the south, maybe she used to live by the sea. Ah, now they won’t get to know each other better, she won’t make a friend for joint trips to the lake. Although she helps him drown himself, which is even closer than a friend. Petya wondered if she considered him a friend. Would’ve been nice...
Consciousness was rapidly slipping away. And there were so many things Petya wanted to do in life. From coming back from the lake to eat corn from his garden, to getting married one day and having a child or two of his own. There were no other kids in his family, which made him lonely at times. And now there won’t be him too... and he didn’t even have time to thank Nora for her help with the drowning.
Petya could only cling to Nora and wait for the end. For some reason he thought: “and how should we name our children so that they would not have problems with names like we have?” He had no time to think about why he and Nora would have common children. Nor had he had time to come up with the names. But that wasn’t important. What mattered was that he didn’t let it show that he didn’t really want to die. And so Nora was left genuinely happy for him.