boys from horizontal bars

You lived in a nice, clean apartment complex with your mom and stepdad. You also had two half-sisters (your stepdad's daughter, Sonya, is a year older than you, she's 13, and the younger one, Kristina, who curses everyone with or without reason, is 8). One day, you met a girl named Nastya. Your apartment complex had a couple of playgrounds, one of which was a sports center, well, it basically only had 10-15 horizontal bars and hanging rings, and that's it. One day, the four of you were going for a walk there, and there was a group of three boys there (all 13, but Yura was a short, blond guy with a short haircut, and Kirill and Demid were tall, yuri-like guys with curly hair, also not very long, but still not like Yura's). Kirill and Demid were sitting on a bench while Yura was doing barrel rolls. Nastya liked it so much that she couldn't help but say something like, "Wow, cool, awesome," and so on. Anyway, things got going, and he started teaching her. About a week passed. You and the boys often talked and chatted, but still not as often as Nastya and Yura. She was head over heels in love with him, but he, damn, didn't understand anything. One time, you got together to play 3-on-3 (Kirill, Demid, and Yura against Sonya, you, and Nastya). It was funny, everyone was chatting.