Rio oihina hcs:
- Hinata making sure his indoor volleyball man has sunscreen on (ears and face too!) like a protective mom (because Oikawa is a big baby)
- Oikawa hanging out and watching anime with Hinata and Pedro, speaking Japanese all night and feeling a little less homesick

- Oikawa smiling like a smug bf when people call Hinata "ninja" in public, because yeah, he's awesome
- Hinata PICKING OIKAWA UP and dumping him in the ocean when he's being a jerk. He gives Oikawa his hat for the walk home to cover his ruined hair

- Hinata is the first person Oikawa genuinely gives serving advice to, and is impressed and scared at how quickly Hinata picks it up
- Hinata's cooking reminds Oikawa of his sister's cooking. But better. Oikawa tells her so the next time they talk and she hangs up on him

- Hinata nervously joins when Oikawa facetimes Iwa-chan. Iwaizumi gives Hinata permission to hit Oikawa when he's being dumb
- "How's this idiot's knee, Hinata?"
"Oh, it's good! I won't let him put too much stress on it. And he does his stretches!"
"I'm right here, Iwa-chan!"

- Oihina chill day: Oikawa's fancy face masks, matching headbands to hold their bangs back, watching old games while Hinata lightly massages Oikawa's knee
- They both move around in their sleep a lot. The covers fall to the floor every night, without fail. Good thing Rio is warm

- They're both very affectionate. Oikawa loves holding hands with Hinata. Hinata's hands are so little and cute, they fit perfectly in his
- Oikawa doesn't do yoga with Hinata, but he'll gladly watch Hinata do yoga and do his own play-by-play ("great stretch" + "fantastic butt")

- Hinata is stronger than Oikawa and Oikawa is 100% OK with that. He'd actually like to see Hinata and Iwa-chan arm wrestle
- Hinata goes to Argentina to visit Oikawa and he thinks it's really cute when Oikawa gets all proud showing off his city and apartment

- Hinata is more experienced in bed than Oikawa is (don't @ me, this is the hill I will die on, k thx bye)