He's seen the way boys look at her. How their eyes roam up and down her petite figure, how some would even lick their lips at the sight of her. How gross. Of course, in any of these instances, the horny idiots would get their face smashed in. Rin wasn't very forgiving, especially not when it came to his precious sister.

Why he was so protective over his baby sister, not even he knew. Though, if he had to guess, he'd say it would be because he ignored her for so long When he left her she was a snot-nosed, bratty shortcake who still needed him to take her to the toilet, and when he returned to her she was an almost fully-developed teenager. Yeah, Rin wasn't an idiot. Even if she was his sister, he could tell she was attractive.

At first he didn't worry too much about that swim club. They were on a lot better terms now,heck, they were friends again. They wouldn't go after his sister right? If they wanted to, they could have grapped her when he was being ignorant and uncaring towards anyone other than himself, right?

He was proven wrong. As in, right now, he was proven wrong.

They were over at Haruka's place for god knows what reason. Nagisa probably pulled them all over, he didn't even remembed. Back on topic, they were all sat around the kotatsu, laughing and chatting and just being idiots. And then Makoto.. Sweet, sweet Makoto, offered to make everybody a drink. After asking everyone what they wanted, (he lingered way too damn long on Gou), he headed off into the kitchen and ,kitchen together.

Rin wouldn't have that, so roughly three minutes later, he went in after them.

They. Were. Hugging.

Perhaps it was safe to say he went shark-mode on the bastard. Well. He would have.. If everyone else looked confused as to why he was so pissed.

Apparently, hugging Gou was a damn near regular occurrence for all of them. After all, it was just HUGGING.

Rin stressed out so much that day he passed out. Nobody has spoken to him for days.

Tch, bastards. They know not to.