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Regulus shivers under his sheets. He‘s been lying in his bed for at least two hours by now, unable to sleep because of what happened at the dinner party with his family and a bunch of people that his parents told him were important.
Regulus smiled, was polite, just like his parents told him to be, and for a change, his brother didn’t cause any problems. Or at least, none that anyone but Regulus noticed. Because when they all sat down at the large table in the dining room, Sirius didn’t take his usual spot across from him, no, he sat down next to him.
The dinner went smoothly, Sirius whispering little jokes or comments into his ear, Regulus was actually enjoying himself. That was, until dessert arrived. His brother scooted a little closer, making some comment about one of their cousins, but while doing that, he let his hand drop into Regulus' groin, squeezing a bit.
Only a few days prior to that, Regulus figured out, that his penis gets a little harder than usual, when he thinks funny thoughts, like his brother without his shirt, or his friend Barty, when he comes out of the shower.
The exact same thing happened when Sirius touched him down there. His penis got a little harder, but Sirius didn’t seem to notice or mind, because he just kept stroking and squeezing for a moment, before he withdrew and just casually kept eating his cake.
After that, Regulus excused himself, locking himself in his room. He went straight to bed, where he still is, not moving a muscle.
He hoped that his penis would calm down after a while, but it still hasn’t. Some time ago, he heard most of their guests leaving, so at least, nobody is going to come in and check on him. It’s a relief, if it wasn’t for the small part of him who wanted someone to check on him. A very specific someone. But that won’t happen, because Regulus heard Sirius pass his room an the way to his own about an hour ago.
Regulus sighs and kicks his blanket away in order to look down. There is definitely a small bulge in his pants that he would very much like to go away, he just doesn’t know how. Slowly, he pulls his pants down, careful not to touch his penis. It flops down against his lower stomach and Regulus just watches. There‘s nothing else he can do.
A small creak indicates that someone stepped on the floorboard right in front of his door, so Regulus hastily pulls his pants up, and sits up while the door pushes open. Regulus doesn’t need any light in order to know that it’s his big brother who snuck in. He‘d recognise the way he moves, the way he sounds, the way his presence feels anywhere in the world.
Murmuring, Sirius stays next to the door. "What are you doing?" Regulus whispers and pulls his blankets higher, so that it covers more of his bare chest.
"Put some silencing charms up and made sure that nobody can come in," Sirius says at a normal volume and makes his way towards Regulus.
He flicks the small light on the bedside table on, and pulls the covers a bit away from Regulus, in order to wrap himself up in the blankets while crawling into the bed. Regulus just stays where he is, staring at his brother in just his boxer shorts. "What are you doing here, Siri?" Regulus whispers again.
"No need to whisper, my silencing charms work," Sirius says. "And I just came to talk," he adds.
"Talk about what?" Regulus asks and squints his eyes while simultaneously trying to steal his blankets back.
For a moment, his brother’s eyes dart around. Regulus immediately recognises it as a sign of Sirius working up to say something difficult. "At dinner," Sirius start, "when I touched you, did you feel something?" Sirius piercing blue eyes meet his and stare straight into Regulus' soul, and he can’t do anything besides slowly nodding his head.
"I- are you still…hard?" Sirius asks and tries to get a glimpse of Regulus' pants, but the blankets hide everything from view. Again, Regulus feels his brother‘s piercing eyes on his and he can’t do anything but nod.
"Icanshowyouhowtomakeitgoaway," Sirius blurts out.
Regulus considers it for a moment. Then he tilts his head to the side and asks, "How?"
His brother immediately springs into action, successfully kicking the blanket on the floor before Regulus realises what he‘s doing. On a closer look, Regulus can see that there is a small bulge in his brother‘s pants as well, much like in his own, only a little bigger. Only when he looks up again, he notices that his brother must‘ve been staring at Regulus' groin.
"See, Reggie, you just take it in your hand, like so," Sirius says and his hands disappears in his pants.
For a moment, Regulus doesn’t move, he just watches. Sirius' hand resurfaces again, but only to take his underwear off and send it flying to the floor. The sight that presents itself sends a bolt of lightning straight to his penis.
"Take your underwear off, it’s easier without it," Sirius' voice snaps him out of his staring. Dutifully, he pulls his own underwear down and throws it to the side.
Sirius nods approvingly and his hand is on his penis again. "Good, now stroke your cock like that," he says while moving his hand up and down.
"My what?" Regulus asks quietly.
Sirius scoots a little closer and cups his face, but all Regulus can think about is how that very hand has been on Sirius penis (or cock?) only seconds ago, and how much he‘d like to put his own hands on Sirius.
"Your cock," Sirius repeats softly. "That’s what people say instead of penis," he explains and Regulus nods understanding.
"Have you ever touched yourself before? Like I just showed you?" Sirius asks, his hands still on Regulus' cheeks, their faces still close enough that he feels Sirius' breath on his skin. Regulus shakes his head no.
"Have you been hard before?" Sirius probes and Regulus nods his head in confirmation. "What were you thinking about, or seeing when you got hard?"
When Regulus doesn’t answer right away, Sirius nudges his chin and places a soft, barely-there kiss to his cheek. "Once, I saw Barty coming out of the shower, he was naked and I got…like this." Sirius doesn’t avert his eyes, he just keeps staring as if he expects to hear more from Regulus, so he continues, "And once, I thought about you kissing me." It’s not much more than a whisper, but with Sirius this close, he doesn’t need to speak louder.
His cheeks burn, but Sirius smiles at him. "Like that?" He asks while softly kissing his cheek again.
"No," Regulus replies. "Like big witches and wizards do."
Sirius nods understandingly, and to Regulus great delight, their lips brush against each other. They repeat this action once, twice, before Regulus pulls back. "Have you kissed anyone before?" Regulus asks. When Sirius nods, he quietly adds, "Can you show me?"
Sirius smiles and leans even closer, his lips wrapping around Regulus bottom lip, hands still cupping his face. He opens his lips a bit, trying to mirror his brother‘s movements by taking his upper lip into his mouth, and it earns him an approving hum. Their lips stay locked like this for a few moments, until Regulus feels a tongue against his lip, probing his mouth open even further. He grants him access, happily, and is rewarded with the tingling sensation of their tongues against each other.
"Now touch your cock," Sirius instructs, not leaving his mouth while he talks. Regulus obeys, and it‘s entirely too much. He strokes his cock slowly, just like Sirius did, while trying to kiss him back attentively. The tongue in his mouth swirls around, and Regulus feels a bit dizzy from tasting Sirius' saliva, feeling his lips on his, the stimulation on his cock.
When Sirius pulls back, Regulus whines at the loss of contact and opens his eyes to see what had caused it in the first place. His brothers sits in front of him, hand on his cock, just looking at Regulus.
"You‘re doing so well, Reggie," he praises and it makes him ache for his brother‘s touch. "Does it feel good?"
Regulus nods, and strokes himself a few more times in time with Sirius.
They just sit there for a moment, looking at each other while making themselves feel good.
"There are more things you can do to make it feel good, you know?" Sirius informs him, and his hungry, lustful gaze meets Regulus'.
"What kind of things?" Regulus asks. He doesn’t know if he should be this curious, doesn’t know if he is supposed to do or want to do these kinds of things with his brother, but he does. And the sensation of everything, the kiss, the strokes, it all leaves his brain a bit foggy.
"Want me to show you?" Sirius asks and scoots closer again. Regulus shivers in anticipation and nods. "Right, Reggie, when you want me to stop, you just say so, and I’ll stop, okay?"
"Okay. What are you going to do?"
His brother moves closer. He doesn’t answer, he just kisses him again and Regulus sinks into the touch. He wraps his arms around the other boy’s shoulders while he feels Sirius' hands on his waist.
"Is this wrong?" Regulus asks, quietly, afraid that the answer might be yes, but Sirius just moves to kiss his jaw instead, only letting go of him in order to assure him. "If it feels good, then it’s not wrong. Does it feel good, Reggie?" While he says that, he moves his kisses down to the base of his neck, softly sucking on the skin there. When he lets the skin go, Sirius makes an obscenely wet sounding noise that goes straight to Regulus' cock.
"So good," Regulus whines and can’t help but jerk up a little, his cock brushing against Sirius'.
"Oh, fuck," Sirius curses, and Regulus fears that he did something wrong, because he stops kissing his neck. Instead, he pulls back a little.
"I‘m sorry, Siri. I didn’t mean to," he apologises, and tries to hide his face somewhere, but Sirius pushes him backwards until his head lies down on his pillow.
"Shh, it’s okay, Reggie. You didn’t do anything. I‘m gonna make you feel so good, I promise," he coaxes, hands roaming over every inch of exposed skin. "Can you say 'stop' for me, Reggie?" He asks.
"Stop," he whispers obediently, and as the word leaves his mouth, Sirius' hands leave his body and he pulls back.
"See, this happens when you say stop. I can make you feel good, but I’ll stop immediately if you don’t want it. Do you want it, Reggie?"
Regulus winces, his mind rushing at light speed. He doesn’t feel like he should want this, but his brother can make him feel so good. And he already does. Not physically. He makes him feel safe, he makes him feel worthy, makes him feel seen, heard and loved. He trusts his brother with every cell in his body. "Yes, want this. Want you," Regulus chants, and his body shivers when he feels hands on him once more. They touch his arms, his legs, his chest. Sirius grazes his nipples, then runs his head down his body, towards his aching cock.
To Regulus surprise, it’s not Sirius' hands he feels on his cock in the next moment. No, it’s his lips, slowly placing tender kisses on the tip. Regulus gasps, and his brother looks up at him, mouth hovering only millimetres over his cock.
"Can I give you a blowie, Reggie?" He asks, and Regulus doesn’t know what that is, a blowie, but if it feels only half as good as Sirius kissing his cock, then yes, he wants it. He tells Sirius, probably a bit more enthusiastic than he has been about anything this night, because Sirius chuckles, before he happily goes to work.
And oh, boy, does it feel good. Sirius takes the whole cock into his mouth, all at once. He‘s not as big as Sirius, from what he saw earlier, still, his penis grew quite a bit over the past few months.
He moans loudly when the tip of his cock meets the back of his brother’s throat. To make matters worse, Sirius looks up at him with dark, lustful eyes and Regulus would really like to close his eyes at the sensation, but he can’t, because he would miss his brothers lips stretching around his cock.
He bobs his head a few times, swirling his tongue around and Regulus swears he‘s going to pass out. "Siri, s-so good," he moans and he feels his brother smile around his cock.
The slurping noises that Sirius make are entirely too sexy for Regulus and instinctively pushes his hands into his brother’s hair. When he resurfaces for a moment, probably in order to get some air, Regulus quietly asks, "Can I try that, maybe?"
"You want to give me a blowie?" Sirius asks in surprise, but he doesn’t seem opposed to the idea, so Regulus nods. "You can, but I might come."
"What‘s that?" Regulus asks, eager to learn everything his big brother knows.
"Well, when you do this, have sex I mean, you might come. When you do, sperm comes from your cock, and it feels really, really good," Sirius explains, softly Regulus' thighs.
It feels really, really good. "I want to make you feel really, really good," Regulus says in all honesty.
"Okay, Reggie, whatever you want. And if you‘d like that, I could try and make you come afterwards."
Regulus nods eagerly and the older boy shifts a little, giving him the freedom to search for another position. He decides to crouch down the way Sirius just did for him, but he doesn’t start right away, he hovers over the cock in front of him for a moment, not doing anything.
"You don’t have to do this, Reggie. It’s okay if you don’t want to," Sirius assures, stroking a strand of hair behind his ear.
"No, no, Siri. I want to do this, I really do. I just don’t know how- like what am I supposed to do?"
His older brother smiles down at him, so softly and fondly that Regulus knows he would do about anything for him. "First you can just take it in your mouth, just the tip, maybe, to get used to the feeling." Regulus does just that, and it’s very warm, and tastes a bit salty. "Yes, just like that. When you feel comfortable, you can take more in, you can move your tongue a little, but be careful with your teeth, yes?"
Regulus removes the cock from his mouth in order to assure Sirius, that he understood what he says, but when he goes to move it back in, he suddenly feels the urge to lick the cock. After a moment of hesitation, he decides to give in and just try it. He starts at the base and licks a wet path up to the tip, then takes it back into his mouth. Sirius' reaction is a soft "Shit, Reg," and he feels his hands in his hair, guiding him further down on the cock.
"Now, if you feel ready, you can try and move up and down a little," Sirius suggests, so that’s what Regulus does. He bobs his head, like Sirius did, while trying to imitate the tongue-swirling. It seems to work, because a string of soft moans and Regulus' name falls from his brother’s mouth. This spurs him on, so he tries to take even more of him in, until he gags. It earns him a quite loud moan, so he decides to do it again. This time, he feels Sirius' hands in his hair, holding him down. He usually wouldn’t like for someone to cut off his air supply, but he finds that he doesn’t mind so much if it’s his brother’s cock. Interesting.
As soon as his brother loosens his grip, he comes up, gasping for air. A string of saliva connects his lips to Sirius' cock, and judging by the look on his face, the view must be quite obscene. Regulus doesn‘t care. In fact, he kind of enjoys knowing he can put that look on his face, make him moan and curse his name. He wonders what he might be able to do once he gets some practice, wonders if Sirius might let him practise on him.
He moves back down, making some wet, slurping noises that he would be very embarrassed about, if Sirius didn’t seem to enjoy it this much. He pushes further down again, to the point where he knows he‘ll gag again, and Sirius shouts, "Fuck, Reg, I’m gonna come, gonna come, gonna come."
He doesn’t really know what to do with this information, so he just stays where he is, while he feels his brother’s hips stutter, and some hot liquid squirts into his mouth and starts running down his throat. He doesn’t know if one is supposed to swallow it, but he does, and it makes Sirius squirt a few more strings of hot liquid into him. It taste salty and a little stale.
"Fuck, Reggie, you swallowed it?" Sirius gasps when Regulus sits up again.
"Aren’t you supposed to do that?" Regulus asks, afraid that he might’ve done something wrong or weird.
Sirius moves closer, cups his face and presses a small kiss to his lips. "Of course you can do that, it’s only- I mean you don’t have to. Some people like it, some don’t, but most people don’t swallow the first time they do this."
Regulus shrugs and this time it’s him moving forward to press a kiss on Sirius' lips. "It was okay. Did you like it? Did it feel good?" He feels like the fact that Sirius came is an indicator that the answer is yes, but he needs to be sure, needs to hear it.
"It felt bloody amazing, Reggie. So fucking good," he assures, and Regulus blushes at the praise. It just feels so good, knowing that he can make his brother feel good, pleasure him in that way.
"Do you want that too?" Sirius asks while gently leading Regulus back to lying down on his pillow. "Want me to make you feel good, to make you come?"
Regulus nods, a small noise of excitement escaping his mouth. The older boy chuckles while moving to straddle his legs.
"How do you want it, Reggie. Want me to wank you, or want me to blow you?"
"What does wank mean?" Regulus asks, not even slightly embarrassed to ask these questions, because he trusts Sirius. He doesn’t make him feel stupid for asking, he just explains it calmly, making him feel so safe.
"It‘s what we did earlier. Like this," Sirius says while stroking his cock slowly. "So do you want this, or the blowie?"
"Blowie," Regulus decides. It felt so good earlier, he‘d like to feel it again.
"Blowie it is," Sirius says, pressing sloppy, wet kisses to Regulus chest, his stomach his thighs, until he hovers over his cock. Much like last time, he just takes everything in his mouth without a warning, making Regulus gasp.
He bobs his head again, a little faster than last time, and it feels like heaven. It also appears as if Sirius enjoys it as well. He sucks, licks and strokes his cock in turns, occasionally moving his tongue to his balls, making his breath hitch every time. He moans and slurps, and the whole situation is downright devine and filthy.
Regulus feels an odd twist in the lower part of his body, like a rubber band that is about to snap. A gentle tremor, like a distant storm, stirs the depths within, and he feels his mind slip away. With the last remaining bits of sanity in him, he wonders if he should warn Sirius, but it’s too late. He falls over the edge, his body trembling, spilling into Sirius' mouth, chanting his name. He closes his eyes, seeing stars, and when he opens them again, he sees his own star right in front of him. Dopy smile on his face, saliva and sperm running down his chin. He looks devine and so fucking beautiful.
Regulus pulls him up to kiss him. He doesn’t care how messy he is, doesn’t think about what it is, he taste in Sirius' mouth. He just enjoys the closeness. "Thank you, Siri," he mumbles into the kiss.
"You liked it, then?" Sirius asks, a wonderful glint in his eyes.
"Felt so good," Regulus murmurs and lets himself sink into his pillow again.
"Glad to hear that," Sirius says and lays down next to him, pulling the covers over both of them. "You know, there are some more things we could do that feel good, but on another day, maybe."
Regulus hums approvingly, snuggling closer to his brother. "Want to try everything with you," he mumbles, failing to hide the excitement in his voice.