(Taking place during OOTP. SS and SB are 35 if I did my math right. They look older to me in the movies and I generally prefer the book version and my own imagination.)

Sirius guessed he was disappointed? Was that the right emotion? Maybe he was just horny. Severus had quickly left the meeting again without a backwards glance. Of course Sirius had spent the last two meetings trying to be as far away from Severus as possible though he was unable to control what he hoped were covert glances at the other man. His face burned at the mere thought of their last encounter. It seems he was doing a lot of embarrassed blushing these days, something that had never afflicted him before.

Sirius was in his room pulling off his sweater lost in thought when he heard a sharp knock at his door. Surprised and wand not in hand he opened it only to be pushed roughly back into the room by an angry Severus Snape.

Severus started in without warning. "You will stop staring at me at the meetings." Sirius was too shocked to answer he had no previous indication that Snape had noticed at all. "I wasn't… I didn't mean…" Severus cut him off. "Why don't you just ask me for what you want?" Snape's eyes glittered.

Severus was gripping his arm tightly. Seeing Sirius in just a t-shirt and no sweater or robes made Severus see how thin he was these days. He hadn't had much capacity to notice two weeks ago. He felt a flash of annoyance at this. How dare Sirius continue to be so pathetic, he was working so hard to not feel an ounce of empathy. If he was really being honest with himself it was already too late for that. "You're far too skinny" he snapped "Are you eating?"

"Yes" Sirius said startled into giving an answer rather than a rude retort.

"You're lying"

"Why do you care?" Sirius was incredulous

"I do not want to feel as if you will break in two whenever I have my way with you." Severus stared straight into Sirius' eyes challenging.

Sirius' mind raced with possible rebuttals, his head cocked slightly to the side "I think you care Severus. About the order, though you pretend to be put upon the entire time. I think you care about Harry because of Lily and here you are in my bedroom again. I think all the hatefulness is just an act, I think you prefer to be disliked."

Sirius saw the flash of movement and heard the loud slap before he felt the sting blaze across his left cheek. He slowly touched his hand to his burning cheek looking at Severus from under his eyelashes he couldn't help the small grin that began to spread across his mouth. 'Touched a nerve' he thought smugly.

Severus was glaring at him "What I prefer is for you to be naked and on your knees. You have 30 seconds to find something more useful to do with your mouth than spouting nonsense"

Sirius' grin faded and Severus was sure this was it. Sirius would definitely throw him out and that would be that. He still couldn't quite reconcile this Sirius with the one he had known at Hogwarts.

But Sirius gestured to the nearby armchair stepping further into Severus space. Severus backed away and sat not knowing what to make of the hungry look in Sirius' eyes. He tried extra hard to keep his face either stern or impassive. Sirius quickly knelt between Severus' legs forcing them wider. He unbuttoned and unzipped his fly pulling out his manhood. Using his hands and mouth he did as Severus had requested. Severus gripped the arms of the chair and tried to remain silent as he watched Sirius Blacks' pretty mouth on his cock.

Sirius pulled away "So you prefer me naked? How much do you think about me naked then?" he asked smirking. "Was it a lifelong fantasy fulfilled two weeks ago when you got me out of my clothes?"

"Do. Not. Speak." Severus ground out. Then Sirius did something particularly salacious and Severus forgot to breathe for a moment.

"Why can't I speak?" Sirius asked with faux innocence noticing Severus' agitated state.

"Because you're a little pain slut, you'll do as I say or you'll get nothing from me." This declaration would have had the desired domineering and insulting effect if it hadn't been followed by a gasp.

"Stop" he ground out and Sirius sat back on his heels. With every ounce of self-control he possessed Severus stuffed himself back into his pants.

"Ask me for what you've been after for two weeks." He said to Sirius.

Sirius looked away so Severus reached down grasped his chin firmly. "Look at me and ask me for it Sirius."

When had they started solely using first names? Sirius mused but he met Severus' eyes "I want you to fuck me" he said quietly but steadily.

Severus almost smiled. "Ask me nicely."

Sirius wrapped a hand around Severus' wrist as if to yank the hand holding his chin away but didn't, he swallowed. "Please Severus, will you fuck me? Pretty please, with cherries on top."

Severus complied and Sirius would admit that it was wonderful. He was surprised though, surprised by the underlying tenderness. Of course Severus was rough with him per their unspoken agreement but he felt something shift between them.

Afterwards as they both lay catching their breath and basking in the afterglow Sirius unthinkingly grasped Severus' forearm. Severus flinched and Sirius let go quickly. "There will certainly not be any cuddling or anything of the sort" he said sitting up and putting some distance between himself and Sirius.

"I didn't mean to, it's just your skin is so warm" Sirius was starting to get really embarrassed but he went on. "The whole time I was in Azkaban I was without warmth and the touch of another person. The only thing I could feel was cold. I'll never take it for granted again"

Severus just stared his face unreadable to Sirius but inside he felt sick to his stomach, ignoring the empathy was not going to be an option anymore.

Feeling a bit awkward Sirius stood and crossed naked to the dresser. He took his time pulling out pajamas.

"I'm going to shower I trust you can find your way out the same way your found your way in"

Sirius intended to walk naked to the bathroom hoping Severus would watch him go but a hand on his waist stopped him. Severus had managed to get his trousers on, he was still bare chested and Sirius' eyes slid downward on their own accord.

Sirius was clutching his clothes. Severus' fingers were digging into his right hip and he reached his other hand behind Sirius' head, fingers tangling in his hair he pulled Sirius' head back gently. Severus' face was so close to his own that Sirius thought for a few wild moments that Severus might kiss him.

"No more staring at me during the meetings. And I'm serious about you eating. You don't want to displease me"

Severus let go before Sirius could think of a response. He reached around and landed a sharp slap to Sirius' bare ass. Sirius' body jolted in response. He scoffed but didn't respond. He turned and continued to the bathroom shutting the door between them his mind was even fuller than it had been earlier that day.

Severus did in fact watch Sirius' slow walk to the bathroom. He was mostly admiring the perfect red handprint on Sirius' pale behind and wondering what the hell he had gotten them both into it.