Summary: Lupin never gets sick... Or does he? And when the unexpected happens, who will be there for him? RLSB Slash. Enjoy!

Disclaimer: I don't own Harry Potter or these characters, because trust me, if I did you'd know (and Sirius and Remus would end up together. Just had to mention that...)

Remus sneezed. He looked fleetingly puzzled, brows furrowing slightly, then shook his head and continued walking, chatting to Sirius about their latest prank on the Slytherins. He sneezed again, louder. Sirius half - grinned. "You OK, Moony?" he laughed. Remus looked bemused. "Odd... I never sneeze."

"Maybe you're coming down with something," Sirius said, sounding somewhat concerned. Remus shook his head, smiling. "I don't get sick, Si, don't worry about it!" He laughed, and then coughed suddenly. "Sorry," he muttered. "You're in charms next, right? I'm going this way... I'll see you soon!"

Sirius nodded reluctantly and turned away, before turning back to gaze into Remus' amber eyes. "Be careful, Moony, yeah?" he said quietly, turning and walking to his class.

Half an hour later, Sirius was staring at the back of his professor's head, bored out of his mind, when he suddenly sat up straight, stiffening. It was as though he had heard Remus' voice say his name, but glancing around he saw that his classmates were oblivious, having clearly not heard anything. He raised his hand, which he noticed was shaking slightly. "Em... May I be excused sir? I feel sick..." he lied, slipping out of the room. For a moment he paused, uncertain, then headed towards the corridor that led to the stairs.

As he rounded the next corner he saw Remus leaning against a wall, breathing unevenly, and he felt his heart rise to his throat. "Moony, what's wrong?" he demanded, swiftly pulling level with his friend. The Lycanthrope shook his head. "I'm fine Si, just... I don't know, I think I'm just tired. Don't worry," he said, pushing himself away from the wall and walking off, trying in vain to conceal the effort it took. Sirius reached out and caught his arm, holding him back. "You are not fine, Remus Lupin, and you are coming to the hospital wing now, no discussion."

Remus spluttered, "No, I can't, I..." he broke off suddenly, paling, and whirled round, racing down the corridor and into one of the bathrooms. Sirius chased after him, rolling his eyes slightly at his friend's stubbornness.

When he entered the bathroom he saw Remus standing, coughing, by one of the sinks, and for the second time that day Sirius felt his heart skip a beat. The werewolf's knuckles were gripping the rim so hard they were white and his face was flushed and clammy. He learned further over towards the sink before vomiting, his entire slim frame shuddering. Sirius was beside him in two strides, held his silken, chestnut hair back from his face, and said, "It's OK, Moony, I'm here... It's OK..."

Remus groaned, taking out his wand and deftly twirling it around his head while muttering 'Scourgify'. He splashed water on his face and rinsed his mouth, trying to get rid of the horrible taste. Sirius, sensing his friend wanted to do this himself, leaned casually against one of the sinks and watched. When Remus was finished cleaning himself up, Sirius put an arm around his shivering friend and muttered, "You OK, Moony?"

Remus whimpered in reply, and suddenly turned and, surprisingly, threw his arms around Sirius' waist and buried his face in the taller boy's thick, ebony hair. Sirius struggled not to gasp in surprise, placing his arms around his friend in return and holding him close, smiling gently. He tilted his head down slightly, taking in the sweet scent of Remus' hair and muttering some comforting nonsense in his ear.

He felt rather than heard the slight hitch in Remus' breath and the acceleration of his heartbeat when he felt Sirius' breath warm and soft on his ear. Sirius' eyes widened as he felt the small, warm hands of his friend slide up his spine, which tingled deliciously, and run their way through dark chocolate hair. He leaned his head back at the same time as Remus looked up and for a long moment Sirius stared into his friend's face, noticing his beautiful, delicate features, his small, cherubic lips, his incredible, bright hazel eyes that were right at that moment searching Sirius' own face and the stunningly pretty rose blush that covered his cheeks.

"You're beautiful..." Sirius muttered, blushing luminously when he realised he had spoken aloud. "I... er..." he trailed off, staring at the slight smile on his companion's face as his friend leaned in to kiss him, gently at first then gradually harder, faster. Sirius felt fireworks going off in his head and eventually pulled back reluctantly to catch his breath. Remus was staring at him, eyes wonderfully bright but face abnormally, unhealthily flushed, mouth hanging open.

"Oh," he breathed, sounding stunned, and Sirius laughed, releasing Remus' waist. The smaller boy, unsupported and still shaky and sick, swayed back on his feet until he almost fell over backwards, but Sirius grabbed his hand – which was burning – just in time. "Merlin, Moony," he said, worried, "Your hands are warm, and..." he broke off and pressed the back of one hand lightly to Remus' forehead, "You're burning up! You're coming to the hospital wing, now!" he ordered, dragging his friend ('Boyfriend?' wondered Sirius to himself, grinning awkwardly at the thought) out the door along with him.

By the time they got to the main staircase, though, it was clear that Remus couldn't go on any further. He was shivering fiercely, mouth pressed tight with determination, and though he hadn't said a word of protest all journey, when they stopped at the door to rest Sirius could hear his breathing, huge, shaky gulps that sounded like he was going to be sick all over again. "Right," Sirius muttered, walking over to Remus and swinging him, struggling, into his arms.

Exiting onto the stairway, he glanced at the five staircases it would take to get to the Hospital Wing then at the two it would take to get them to their common room, and headed for the latter option. By the end of the first staircase Lupin had stopped protesting and simply curled into Sirius' arms, shivering and resting his head on Sirius' chest. They carried on through the mercifully empty corridors until they got to the portrait of the Fat Lady, where Sirius paused for breath before giving the password. She arched one eyebrow, shaking her head at the antics of her students before sighing and swinging back to let them in.

Sirius carried Remus up the stairs to their dormitory and set him on his bed, where he promptly curled up and fell asleep. The dark-haired boy sat down on his own bed to get his breath back, watching the peaceful expression on Remus' face, and wondered what to do next.

TBC…

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