Marauders' era one shots

(🇬🇧) How Sirius understood James' crush on the redhead before James himself.

Hogwarts 1973, 3rd year

I opened my eyes and the first thing I saw was my best friend's face just inches from mine.  My eyes widened and I jumped back, falling off the bed.  Sirius burst out laughing
"Did you think I was someone else Jamie?"  and he went into the bathroom still laughing as if falling out of bed because of him was the funniest thing in the world.
"Huh?"  I asked turning to the other two robbers who shrugged their shoulders.

**************

"Hey Sirius can you pass me the pumpkin juice?"  Remus asked while we were at the Gryffindor table.  Sirius made a shocked face.
"But aren't you ashamed? Eh Rem? Do you realize? Do this to a friend of yours. TO YOUR FRIEND REMUS! And then you know that James is terribly jealous come on!" He said shaking his head and pulling out his disappointed expression. We looked at him dazed.
"Sir what are you saying?"
"Ah Jamie you don't need to pretend, not with me." With that said he stood up, winked at a couple of girls and walked away, leaving us confused.

***************

"Hey James. Pss James. Potter! Jamie. James!"
"Sirius there," I said snorting.  Yet he knows that the only subject that interests me is Transfiguration.
"I think you have to try. If you want I'll help you," he said whispering and winking.  And now what took him for Merlin.
"What are you talking about, Sir? Today you are emblematic"
"James is said to be enigmatic," Remus said, still taking notes.
"He didn't he say he was pragmatic?"  Peter interjected, his head resting on the counter and looking apathetically at McGonagall.
"Pragmatic means you're a real person. What does Pete have to do with what we're saying?" Remus said, copying the pattern.
"Yes are what you want but Jamie you should try anyway," Sirius said returning to the conversation.
"To do what?" I said giving up. He probably hit his head somewhere this morning and that's why he does this.
"With Evans of course," he said simply him. Remus almost choked, Peter banged his head on the corner of the open window and I was looking at my now ex-best friend as if he had grown another head.
"Mr. Black, Mr. Potter, Mr. Pettigrew and Mr. Lupin, what are you up to?"  McGonagall asked as she approached us. 
"Minnie, don't you think James is stupid enough not to understand who he is in love with?" Sirius said quietly as he rocked in his chair. I looked at him confused. He had definitely hit his head somewhere.
"Mr. Black I find that all four of you have mental deficits that lead you to be terribly stupid and not learn simple things like who you are attracted to, you first. However, I don't think this is the place or the right time to discuss it." Minnie said, turning to go back to class.

***************

"You should have taken your cloaks, it's freezing cold!" Peter said, rubbing his palms together.
"Pff the cold is for losers Pete!" I said. Ok actually I was freezing to death, damn me. We passed Madam Rosmerta's pub and Sirius stopped in front of the glass.
"What is it, Sir? Want a butterbeer? Just say it, you don't have to scare the customers with your ugly face," Remus said, stopping to watch Sirius gazing inside the club.
"She's here! Jamie's girlfriend is here! Let's go say hello!" Sirius said hopping.
"Huh?" said me, Peter and Remus in chorus.
"But yeah guys! Evans is in here with Mary, Alice and Marlene! Move on," he said, walking inside. I caught up with him before he could enter.
"Sirius, what are you up to these days? Evans and I are not together!"
"Not yet James, but soon," he said. I shook my head.
"Okay then say you don't like her," he said crossing his arms over his chest.
"I don't like her," I said.
"Now tell me by looking me in the eyes," said Sirius, opening his lids wide. Disturbing.
I was about to speak when Lily came out of the pub.  Mary, Marlene and Alice were there too, but Lily came out of the pub. Lily. Close to me. So close. Too much. I distinctly smelled her orange scent and the honey scent of her shampoo.
"Hey Evans, are you coming to Hogsmeade with me next week?" I asked her as my usual.
"Potter I'll go out with you when the Muggle motorcycles fly," she said as she passed me.  She said goodbye to Remus and Peter and went back to the castle. I stood looking at her, enjoying the remnants of her perfume.
"Did we say Jamie?" Sirius said, laughing.
"Will you help me organize the wedding?" I said.