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Sirius was in his office marking papers, late on a Friday afternoon, when his godson knocked tentatively at his open door. He looked up, grateful for the distraction. He loved to teach, but the paperwork was tedious. "Come in, Harry," he said warmly.

"Hi, Sirius," Harry said, and to the older man's eye he looked... nervous?

"What's the matter, Harry?" Sirius asked, concerned.

Harry sidled in and sat on the edge of a chair across from his godfather. He looked down and fiddled with the hem of his sleeve. "Nothing's *wrong*, really."

Sirius knew prevarication when he saw it, even if he'd only been teaching at Hogwarts, and therefore able to talk with Harry on a regular basis, since the beginning of the year. He sighed. He also knew that there was no way he was going to force this out of Harry. The boy would get around to telling him what the problem was when he was good and ready. Harry was as stubborn as he was.

Since his name had been cleared by the Ministry at the end of Harry's fifth year, Sirius had spent as much time as possible with Harry. He could never make up for the years he'd missed, but he intended to try. Never mind that he had no idea what a godfather was supposed to do, and he felt little more than a teenager himself. He almost felt as if he had been suspended during his twelve years in Azkaban, and he hadn't aged at all. People told him all the time that he didn't look any different than when he had finished Hogwarts, and that certainly didn't help him accept it either. So when Dumbledore had offered him the Defence Against the Dark Arts position, he had accepted immediately. Even if he had to work with Snape, he got to see Harry every day. It was worth it. He knew the boy viewed him as more a friend than a parental figure, which suited him fine.

He pushed aside the papers he was marking and leaned forward on his elbows. "You know you can talk to me about anything, Harry." He hoped it wasn't *that* kind of talk, though, he didn't know if he was up to it. Surely Harry knew all about sex by now?

"Well, you know the Spring Dance is coming up next week," Harry began.

"Yes, I'd heard," Sirius said dryly. It was all most of the students, from fourth year on up, had been talking about for some time. "Are you going?"

"Yes, Seamus asked me to go," Harry said, and Sirius wasn't surprised. Harry had told him of his preferences over the summer. Sirius found it a bit amusing that in this respect he took more after his godfather than his father. Sirius had told Harry he was also gay, and it made him feel a bit closer to his godson. He'd also told Harry that these things were much more accepted in the wizarding world than the Muggle world, and that had seemed to set the boy's mind at ease a bit, and they hadn't spoken of it further.

"That's great, Harry," Sirius said, then hesitated at the look on the boy's face. "Isn't it?"

"Yes, it is," Harry agreed. "Except for one thing."

Sirius thought he knew what was coming. "You don't know how to dance."

Harry laughed. "No, that's not it, I can dance just fine. Done it loads of times." He stopped and looked down at his sleeve again. "What I've never done, what I don't know have a clue about is..." Harry took a deep breath, then plunged on. "I don't know how to kiss."

Sirius just stared blankly at Harry for a long moment. That wasn't what he had been expecting at all. "Um, it's a dance, you don't have to kiss anyone..."

Harry blushed. "Well, Seamus might want to... he might expect... he is paying for the tickets, and..."

Sirius shocked himself by feeling a spike of jealousy he felt when he realised what Harry was saying. He blurted out, "Just because he's taking you to the dance doesn't mean you have to kiss him, or do anything else!"

Harry's eyes widened at the vehemence in Sirius' voice. "I... I know that, Sirius. I just... might want to..."

Sirius sat back in his chair. "Well, of course that's different... I just don't want you to feel pressured or anything..." He had confused himself with his outburst. Of course, Harry was a handsome boy, almost as tall as he was, and he'd definitely had his first kiss by this age, and more. He tried to smile reassuringly.

Harry smiled back. "So you understand, then."

Sirius nodded.

Harry went on. "So you'll help me then?"

"Sure," Sirius agreed automatically. Then he realised he didn't know exactly what Harry meant. "Um, how?"

Harry laughed now. "Teach me how to kiss, of course!"

"Teach you how..." What Harry had said was starting to sink in. "Wait a minute. How am I supposed to do that?" Harry just looked at him this time, raising an eyebrow. Sirius got the message. "I can't do that!"

"Why not?" Harry insisted. "I'm sure you're an excellent kisser."

"Well, of course I am," Sirius responded automatically, then realised that wasn't going to help his case. "I mean, I'm your godfather. I can't kiss you. Not like that."

"We're not related, Sirius," Harry pointed out reasonably. "You didn't even raise me. We didn't even know each other until a couple of years ago. You're not my father. We both like men." He leaned forward, and Sirius tried not to look at Harry's mouth when he went on, almost whispering, "Please, Sirius. I really want to know how, so I don't feel like an idiot."

That did it. Sirius knew he was lost right then. How did Harry know just how to get to him? It would be easy, he would just show Harry the basics, so he would feel more confident... never mind that he really didn't want to think of Harry kissing Seamus... Harry trusted him with this, he was coming to him for help, how could he refuse? He took a deep breath and said, "Ok, but just this once..."

Harry's face lit up with delight. "Thanks so much, Sirius! You're great! I just know you'll teach me to be the best kisser in the school!"

Sirius smiled at Harry, slightly worried already. What had he gotten himself into?

"When can we start?" Harry said eagerly, getting up and leaning across the desk toward him. "Now?"

Sirius sat back. "Um, not here!" he said quickly. If anyone happened to come in, he'd have a lot of explaining to do... "Later tonight? In my rooms?"

"Even better," grinned Harry. "See you then!" The boy waved and bounced out of the room, much more happily than when he had entered.

Sirius watched him go, for the first time really noticing how grown up Harry was getting.

+

Sirius sat by the fire, reading an old book and hoping that Harry had forgotten about their "appointment." But, right at the agreed- upon time, there was a knock on his door. He got up and opened the door, to find Harry standing outside smiling at him.

"Hi, Sirius!" the boy said, and looked up at him.

"Hello Harry," he answered. "Please come in." He resisted the urge to glance down the hallway to see if anyone was watching Harry enter his rooms. Harry was his godson, and could visit him at any time. He hadn't done anything wrong. Yet.

Harry walked into the center of the room and turned to Sirius. "You have no idea how happy I am you're doing this for me, Sirius," he said earnestly. Harry was wearing a t-shirt and jeans, no robes, and to Sirius he looked practically naked without them.

"I'm glad to help," Sirius answered, trying to cover how unsure he was. He himself wore loose black pants and a white t-shirt. "Would you like some tea?"

Harry shook his head. "No thanks. Can we just, um, get started?"

The boy was eager. "Ok," he replied. This was so awkward; "Where should we..." He almost jumped out of his skin when Harry's hand slipped into his.

"Let's go sit on the couch," Harry urged, and pulled the older man by the hand toward the couch.

Sirius followed; Harry didn't seem embarrassed at all. Harry sat on the couch and pulled Sirius down very close to him. When Sirius tried to move over slightly, Harry just scooted closer. He looked up at Sirius and said with evident disappointment, "You didn't change your mind, did you?"

"No!" Sirius reassured him. "Just nervous."

Harry laughed. "Nervous about kissing me? That's silly. This is our little secret, no one will ever know. Don't worry at all," he breathed, leaning closer. Any closer and Harry would be on his lap. Sirius pushed that thought away quickly. "Should I take off my glasses?" he asked thoughtfully.

Yes, keep this at an instructional level and everything will be fine, Sirius told himself. "It's not entirely necessary, but it might make it easier, yes," he told Harry, and the boy removed them, setting them on a table. Then he looked at Sirius again, and Sirius realised he'd never seen Harry without his glasses before. His eyes looked huge and he looked much more handsome. Sirius caught himself in the inappropriate thought. He had to remind himself that Harry was sixteen and he was not.

"What's the first step?" Harry murmured, staring into Sirius' eyes.

Sirius cleared his throat. He reminded himself that he was merely teaching his godson. "Well, the approach is important," he began, feeling silly. "So you don't bump noses."

"I always wondered how people managed that, not running into one another's noses," Harry said.

"Just lean in slowly," Sirius explained, doing just that. Harry stayed still. "That way, if the other person moves too, you can adjust." He moved closer still, until his lips were less than an inch from Harry's and he could no longer focus on those incredible eyes. He stopped. "And so the other person can pull away if they don't want the kiss."

Harry still didn't move. The boy seemed to be holding his breath. "Then what?" he whispered. "Show me, please, Sirius..."

Sirius closed his eyes and swallowed hard and gave in. "This," he murmured, and as gently as possible pressed his lips to Harry's. They were warm and oh so soft and it was easy to forget he was kissing his godson. After a second, Harry's lips responded to his, mirroring and pressing back and parting slightly. He kissed Harry softly, gently, and kept his own lips together tightly. Still, it was heaven, Harry's mouth felt perfect against his, and he finally had to pull back. He opened his eyes, and that was a mistake.

Harry's eyes were still closed, his lips reddened and slightly parted. Then he opened his eyes, and Sirius hoped that they looked so glazed because he wasn't wearing his glasses. He had to try twice before his voice came out properly. "I forgot to mention you shouldn't hold your breath. You'll pass out."

Harry nodded vaguely and breathed visibly, proving that his assumptions were correct and Harry had been holding his breath. "That was nice," he murmured.

Sirius leaned back, away from Harry, and said quickly, "So there you go. Nothing to it. It's easy."

Harry looked disappointed. "But... I need more practice! That was only one kiss!"

One kiss that had nearly killed him, Sirius thought to himself, but said, "I think you've got the general idea."

"Please, Sirius?" Harry gave him that look again, the one that Sirius couldn't resist. "I want to make sure I remember to breath during."

"Oh, ok, one more," he heard himself agreeing.

"Thanks!" smiled Harry. "I'll start this time, ok?" he said, and didn't wait for an answer.

Sirius couldn't answer because Harry's warm lips were pressed against his again, and Harry really was a quick learner. Then, he felt a hand on his thigh and his mouth opened in shock. Harry's hand rested lightly on his upper thigh, not moving, but not at all where it should be. Then he got another shock; Harry's tongue slid into his mouth.

Sirius was too shocked at first to do what he should have done, which was pull back. Harry's tongue in his mouth was clumsy and inexperienced and it took his breath away. Unfortunately, before his mind could catch up, his body responded automatically. And kissed back. Enthusiastically.

Other parts of him responded as well; an attractive young male kissing him was bound to have the expected result. Blood rushing from his brain to other parts of his body further clouded the appropriateness of his response. With the effect that now, not only was he sitting on his couch, kissing Harry Potter, and really enjoying it; he was kissing Harry Potter and he was hard.

Fuck.

He raised his hands with every intention of pushing Harry away, of breaking the kiss; but somehow they tangled in the boy's hair instead, and one hand traced down his neck. His long, smooth, soft neck...

In evident response, Harry's free hand, the one that wasn't on Sirius' thigh, buried itself in Sirius' long hair, and Harry wiggled closer. This deepened the kiss, and Sirius still couldn't seem to bring himself to stop it. Harry seemed to have mastered the art of breathing while kissing quite admirably.

But when Harry somehow managed to climb into his lap without breaking the kiss, bringing the boy perilously close to his erection, Sirius finally managed to break the kiss. "Harry!" he managed to gasp.

Harry, panting and lips kiss-swollen, still managed to look innocent when he breathed, "What?" His hands were on Sirius' shoulders and he was straddling his thighs. And he was trying to wiggle closer.

"We can't... what are you doing... I can't..." Sirius had never been one to stumble over his words but he'd never been in quite this situation before. It had been a long time since he'd had an eager sixteen-year-old boy on his lap, and though his body certainly cheered the situation, his mind was trying to protest.

"Why not?" smiled Harry, trying to press his body against Sirius'. "Don't you like it?"

If Harry kept wiggling closer, he would soon be able to feel just how much Sirius liked it. "That's not the point, Harry," he groaned, wincing at his own pun.

"So you *do* like it," Harry replied with triumph.

No shit, thought Sirius, but said, "You're a very sexy boy, Harry. But I'm much too old for you."

"Age means nothing, you know that," pouted Harry. "I'm not a child. I've never been a child. And I'm sixteen. That's the age of consent, you know."

"Is it?" Sirius didn't know. But... "That doesn't matter. I'm supposed to be your godfather. I'm supposed to look after you."

"I don't really need looking after, you know that, Sirius," Harry replied. Sirius had to admit he had a point. When you've defeated the Dark Lord before your sixteenth birthday, you can pretty much handle anything. Then Sirius again lost the ability to think as Harry took his hand and placed it over his erection. "But you can help me look after this," he moaned softly.

Sirius moaned too, involuntarily, as he was confronted with *hard* evidence that Harry was indeed, quite grown up. His hand tightened involuntarily over the hardness under his fingers, and Harry gasped erotically. "Yes, Sirius..."

Sirius whimpered, and suddenly Harry's mouth was on his again, and his hands were on Harry's back, and the boy moved forward. Harry's arousal was pressed into his stomach, and Sirius knew there was no way the boy couldn't feel his own hardness. Indeed, Harry moaned into his mouth and rocked his hips against him. Harry's hands were back on his shoulders, pulling him even closer.

Sirius tried his best to make himself stop kissing Harry, but since he had gotten older, he had had a weakness for younger men, and Harry was undoubtedly desirable. Hormones were taking over now, and he was still making up for the years he had lost in Azkaban. Never a man of typical moral principles, he had been involved with an older man when he was a teenager too. He remembered arguing with his friends about the sensibility of such a relationship. He had said then that it was the best of both worlds; the younger man got a gentler introduction to love and the older man got to taste the sweet youth of the boy. It looked like Harry was taking after him in this respect. He slid one of his hands down, over Harry's ass, and the boy moaned appreciatively. If Harry really wanted this, he would make sure the boy enjoyed every moment.

Sirius broke the kiss, breathing hard as he dropped his head back to rest against the couch. "Harry," he whispered. "What do you want?"

Harry pulled back so there was a bit of room between them, and moved his hand to press it against Sirius' arousal. He cupped his hand around the hard length, squeezing gently, and Sirius' eyes rolled back in his head. "I want you. I want this. I want everything," he breathed.

If Harry didn't move his hand, Sirius knew he would agree to anything. He tried to speak clearly. "Do you know what you're asking for?"

The boy smiled, and looked agonizingly sexy and incredibly young at the same time. "Well, I know in theory," he said softly. "But, like I said, I've never done anything."

A thought occurred to Sirius as he sat there, and he reached down to stop the movement of Harry's hand. He didn't remove it, though. "What about Seamus? Did you make all that up?"

A faint blush coloured Harry's cheeks and he said, "Well, Seamus did ask me to the dance. And I've never kissed anyone before now. But," he paused, "I asked you to teach me how to kiss because I really fancied you, not Seamus."

Sirius gazed at Harry, slightly annoyed but unable to stay that way considering the circumstances. "That's a bit dishonest, Harry."

Harry dropped his gaze sheepishly, and bit his lip. Sirius forgave him instantly. "I know, and I'm sorry about that," he admitted. "I just... wanted you so much, and I didn't know how to go about it... I thought that once we kissed, that..." he looked up again, into Sirius' eyes. "I'm sorry, Sirius, I shouldn't have. Please don't hate me."

"I could never hate you, Harry," said Sirius. "I can't deny that you shouldn't have lied to me. But..." He placed his hand over Harry's, which still rested on his undiminished erection. He arched up slightly into Harry's hand. "This doesn't lie. I want you, Harry."

Harry moaned softly, and the sound made Sirius even harder. "Oh, Sirius," he murmured. "I've dreamed of you so often... I touch myself and think of you every night..."

This nearly made Sirius come all by itself; lovely images of Harry stroking himself filled his mind. He'd almost forgotten how tempting forbidden fruit could be. "God, Harry... you're so beautiful... why would you want me?" He moved his hand to rest lightly on the bulge in Harry's pants, flattening his palm as he rubbed slowly over the fabric. He watched with rapture as Harry's eyes rolled back and his head dropped back, and he gasped.

"Sirius! Oh god, anyone would want you! You're sexy and brave and strong and dangerous and..." he trailed off, his sensual mouth open and his slim hips moving, pushing his cloth-bound erection against Sirius' hand. Harry moaned more loudly, and Sirius guessed he was close to release.

"If we do this," Sirius said, over Harry's protesting moans as he stilled his hand, "We do it slowly, and at my pace, right?" He was amazed at the steadiness of his voice as he suggested beginning an affair with his godson, his student. He was truly depraved.

"Anything," breathed Harry, clinging to Sirius' shoulders, pushing his cock against Sirius' hand none too subtly.

Sirius tried to ignore the ache from his own cock as he eased Harry back on the couch beside him. "Lie back," he whispered, and Harry did so immediately, pulling at Sirius. He followed the boy down, pressing only part of his body weight onto Harry, but just that bit of contact was sublime. Harry arched up against him, and leaned up to capture Sirius' mouth in a searing kiss. Harry was definitely learning fast.

They were both panting when they parted. Sirius sat back and pulled off his shirt, gratified by the way Harry's eyes feasted on his well- developed upper body. As he leaned down again, he braced himself with an arm on either side of Harry. The boy reached up and caressed his biceps, and moaned, "God, Sirius, you're incredible. So much sexier than a little boy. You're a man."

Sirius felt such a surge of lust from Harry's words that he almost lost control. But he held onto his will to go slowly, barely. Harry was innocent, untouched, and he had to go slowly. He moved one hand down to the button of Harry's jeans and the boy gasped. "Yes, please, Sirius, I want to feel your hands on me..."

And oh, god, did he want to touch Harry everywhere... his hands were clumsy with passion, and he felt like a teenager himself. He wanted to tease Harry, rub the hard length through the material, but from the way Harry was panting and squirming he knew the boy wouldn't be able to control himself. He wasn't sure if he could control himself either; he carefully unzipped Harry's jeans. Harry wore blue boxers underneath, and Sirius worked both jeans and boxers down until the boy's arousal was revealed.

Harry's cock was thick and wet and hard against his stomach, and the boy moaned as Sirius just looked at him. "Touch me, please, Sirius," he begged, desperation evident in his voice.

One more deep breath and a fervent hope that he was doing the right thing, then Sirius stopped thinking. A sexy boy that he loved was begging him to pleasure him, and that was all that mattered. He supported himself on one hand as he reached for Harry's cock with the other. He looked in Harry's eyes as he wrapped his fingers around the hard length. He wanted to see every second of passion in those green eyes. He squeezed gently and stroked slowly.

Harry's eyes rolled back in his head as he felt Sirius stroke him. "Oh *fuck*," he gasped, arching up and groaning. "That's so good..."

"Yes, Harry, feel my hand on your hard cock," moaned Sirius. "I'm going to make you come, Harry... you want that?"

"Oh god, yes, Sirius, you're so good..." Harry writhed under Sirius, partially pinned down by the bigger man's body. "Make me come..."

Sirius was very close to release himself, just from touching Harry and watching the ecstasy he was giving the boy. So untouched, so young, so sexy... he leaned down, determined to make Harry's first time as incredible as possible. He was gratified by Harry's strangled scream as he took the boy's cock in his mouth.

"Sirius!" Harry cried out, arching up and thrusting into Sirius' mouth. "I'm going to..."

Sirius quickly sucked on Harry's cock, taking the hard length deeply into his mouth and drawing it out, tasting the tang of Harry's desire and knowing he would surrender to release very soon. He bobbed his head up and down quickly; this was no time to tease the boy. He slid his hand up under Harry's shirt to pinch at his nipples, and that was it. Harry screamed loud enough to wake the dead and then he was coming, filling Sirius' mouth with his release.

Sirius swallowed Harry's seed as the boy rode out the wave of passion. He continued to stroke, prolonging the boy's pleasure, until the moans subsided. He raised his head to look at Harry's flushed face. "How was that?" he grinned, licking his lips. "You taste wonderful."

Harry lay back, still panting. "That was..." words appeared to fail him as he recovered from his climax.

Sirius crawled up Harry's body until he could reach his mouth, then kissed the boy hard. Harry wound his arms around Sirius' back and rubbed himself against the man's aching cock. When they parted, Harry panted, "What about you?"

"I want to look at you," Sirius moaned, sitting back up on his knees, between Harry's legs. He untied the fastening of his pants and reached in to grab his own arousal. "You're so hot, Harry," he said hoarsely, pushing the loose pants down to free his cock.

Harry smiled seductively and looked up at Sirius, putting his hands up above his head and making no move to cover his exposed body. "You like to look at me, Sirius? I turn you on?"

"God, yes, Harry, you're so perfect," groaned Sirius as he stroked himself roughly.

"You look so sexy like that, touching yourself," Harry whispered, his eyes glued to the older man's hand on his own erection. "I've dreamed of seeing you like this."

"Tell me your dreams, Harry," moaned Sirius, stroking faster, licking his lips. "I want to hear your sexy voice..."

"You want me to talk dirty, Sirius? You want to hear what I want you to do to me?" Harry murmured.

"Fuck yes, Harry..." Sirius growled, looking down at Harry spread before him. His slim hips were thrusting now, driving his cock into his hand faster and faster. "Talk to me..."

"Mmm... I want you to everything to me, Sirius..." Harry said seductively, his cock beginning to stiffen again from just watching the older man. "I love being underneath you... You're so strong, I want you to pin me down and fuck me... I'm a virgin, Sirius, I'll be so tight..."

Sirius was panting now, so close but he wanted it to last. "Harry..." he groaned.

"I want to learn to suck your cock, Sirius," moaned Harry, stroking his own rising arousal. "I want to kneel in front of you and take your hard cock in my mouth..."

The thought of Harry sucking him did it for Sirius; with a cry he climaxed hard. His head fell back, his long hair streaming over his bare shoulders as his hot seed pulsed over his stomach and hand. He cried out Harry's name as the intensity washed over him. He hadn't felt anything this incredible in years. Harry's eyes on him and his words increased his ecstasy to almost unbearable levels, and Sirius knew in that instant he would never have enough of Harry.

Sirius lay back on the couch and Harry crawled up to snuggle with him. Harry fit perfectly in his arms and he was too sated to regret what they had done.

Then Harry spoke up. "I liked the kissing lesson, Sirius. What's next?"