"It's been too long since I've seen him…I wonder if he hates me for leaving," Sirius thought to himself as he walked through the barrier between platforms nine and ten at King's Cross Station. It had been nearly three months since he had run away from home to live with the Potters. It had been nearly three months since he shared a heated kiss with his younger brother…

"Siri, mate! You coming or what?" James asked him, ripping him from his thoughts.

"Yeah…right behind you," Sirius mumbled, still lost in thought about how he should approach his brother when he saw him. James and Sirius waded their way through the throng of school-children and parents seeing them off and climbed onto the train and went in search of Remus Lupin and Peter Pettigrew.

They walked through nearly every carriage on the train looking for their friends. Just as they entered the last carriage the door to the compartment to the left slid open. The occupant of the compartment neglected to watch where he was going as he exited into the corridor. He then toppled into one Sirius Black.

As usual, Sirius hadn't been paying attention to his surroundings and fell to the floor as the boy walking out of the compartment fell against him. They landed sprawled out, a mess of twisted limbs, in the corridor.

"Oh I'm sorry I didn't s—oh. It's you. Never mind," Regulus practically spat, his eyes narrowed as he realized that it was his brother that he had run into.

"Geoff' of me. Now Regulus," a very unamused Sirius retorted. He then proceeded to, rather than allow Reg to get up on his own, unceremoniously shove Regulus off of him. Reg looked taken aback at this move. Sirius and Regulus pretended to hate one another at school but it usually didn't go so far as this.

"Not like I intentionally fell on you. Had you not been standing about it wouldn't have happened. So if you'd kindly get the fuck out of my way…" and with that Regulus brushed past his brother and James and walked in the other direction.

"Is he always like that? I mean honestly…" James asked Sirius as he reached out a hand to help him up.

"That he is. Welcome to what my parents wanted me to be…spoiled, selfish little bitch."

They then continued to the final compartment on the train and found Remus and Peter.

"Oi! Could you have found a place farther away?" James joked as he walked into the compartment. Sirius followed, slightly shaken from the encounter with his brother. That wasn't at all the way he'd planned it but because James was there he let himself get a bit carried away in his harassment of Regulus. He'd have to explain it to him later.

"—then we ran into the brat. He was being his usual smarmy self. Isn't that right Sirius…Sirius?" James' words finally snapped Sirius out of his thoughts.

"Wha—oh, right. Yeah. Wanker." Sirius said without really thinking.

"Sirius, are you okay? You seem a bit out of it…" Remus asked tentatively. Ever the perceptive one, of course Remus would notice that something wasn't quite right.

"Nothing's wrong mate. Just a bit tired. Was up a bit too late," he reassured Remus with a wink. But the werewolf was having none of it. He knew Sirius too well to believe that a late night out with some floosy could alter his mood so drastically.

Not wanting to cause a scene, Remus simply laughed at Sirius and returned to conversation with James and Peter. The rest of the train ride passed quickly for the boys. James talked of his new plans to win over Lily Evans, Sirius told the others of his plans to purchase a muggle motorbike in the near future and enchant it to fly, Remus expressed his excitement about the upcoming scholastic year and Peter sat and listened to the others as usual.

The Sorting and Welcome Feast went by almost without Sirius noticing. He was too busy keeping an eye on his younger brother at the Slytherin table. He was nearly caught looking more than once. Or so he thought. In fact, Regulus knew that Sirius had been watching him since they entered the Great Hall. He was still more than a bit angry at Sirius for his behavior on the train and he was sure as hell going to let his brother hear about it.

As the Marauders exited the Great Hall, Sirius noticed Reg leaving the Hall as well. This time when Siri looked up to watch his brother, he was met with the gaze of eyes the exact shade as his own. Reg motioned for Sirius to meet him in the entry way once everyone had gone up to their respective common rooms.

"I'll be up in a mo'," Sirius distractedly muttered to his friends. Figuring he was just going to chat up some girl the others continued up to Gryffindor Common Room. Sirius hung back in the shadows of an alcove just outside the doors of the Great Hall.

Once the throng of people had dissipated, Sirius saw Reg step through the archway that lead down to the dank dungeons that housed his common room. He watched as Regulus scanned the area to see where Sirius was hiding.

Sirius stepped out into the dim light of the entry hall quietly coughing to catch Reg's attention. The look in Reg's eyes let him know he was in for it. They were cold and unforgiving. Not that those were odd emotions to see in Regulus' eyes but it was rare that they were aimed at Sirius.

"What the bloody hell do you think you were doing earlier?" Reg snapped at Sirius without preamble or greeting.

"What do you mean? You ran into me while I was with James…what did you expect?" This was not the response that Reg had wanted or expected. He was livid that his brother had no qualms with the way that he had behaved.

"Sirius I know that while we're at school we act like we hate one another. Yes, it makes things easier. But that was just downright rude. You walked out months ago and I haven't heard shit from you since then. I thought you might be happy to see me. So once again I say…what the fuck is your problem?"

Sirius sighed. He knew that he was in the wrong. That Reg didn't deserve the treatment he'd received earlier.

"Look…I'm sorry. I shouldn't have acted that way toward you. Yes, I'm happy to see you and right now none of that matters because all I can think about is pushing you against the wall and snogging you senseless because you're unbearably attractive when you're angry." Sirius was shocked at himself that his apology had turned into…this.

But it was true. Reg's eyes were practically on fire with his anger and his lithe seeker's body was tense and that meant, Sirius knew from seeing the boy without his shirt on many times in his life, that every muscle was well-defined. He simply couldn't help himself. He had to taste those lips again.

Regulus looked at his brother and slowly began to speak. "Well…I suppose…good. Glad that you're seeing things my—." Reg wasn't given time to finish that sentence. Sirius, being the impatient boy he was, didn't really care what his brother had to say.

As Sirius' lips descended onto Reg's, Sirius felt as if all was right with the world. Never mind that Regulus was two years his junior or that he was his brother. He simply didn't care. Because how could something that felt so right be wrong?

Regulus had similar thoughts going through his mind but he wasn't about to let Sirius control the situation. Against his own wishes he pulled himself away and with a smirk took off down the corridor. After he was several yards away he turned and mocked Sirius. "Not so great when you're the one being walked away from, is it?" And with that Reg continued down to his common room.

Sirius stood there slightly stunned. Had Regulus really just walked away from him? Had He just initiated a kiss with Reg? These thoughts and more swirled through his head as he began the climb to Gryffindor tower.

One thought in particular left a slight smile on Sirius' lips.

"At least he doesn't hate me."