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"Only you, Dickhead." This is the first thing Jason says to Dick when his eyes catch sight of the older man. Or, well. Younger man? Boy? Jason isn't really sure what to make of the situation. Because, being told that your older brother has been de-aged is one thing. Seeing it with your own eyes is another.
"Hey!" The now-teenager protests from where he's walking on his hands further in the cave. He flips back onto his feet and turns to face Jason with a wide smile. "I'll have you know that that stray beam could've hit anyone!"
"And yet, here you are." Jason smirks, walking over to the smaller ma-boy and ruffling his hair. Dick squawks and tries to fix it as Jason continues. "I see your brain hasn't shrunk with the rest of you."
"Yup" Dick pops. "It's all me in here. Just in a tiny body."
"Tinier than usual, you mean?" Jason can't help but tease. Sure, Dick isn't a small man by any means on a normal day, but compared to Jason he's both shorter and less broad. And now, being de-aged, that difference has increased drastically. Dick barely makes it to his chin, and that's with his hair still standing in every direction from Jason's ruffling. And Jason could probably wrap a hand fully around one of the boy's wrists with how lithe he is compared to before.
With Jason standing so close to him now, Dick has to tilt his head up to meet Jason's eyes. He's pouting, and his responding whine makes Jason's breath hitch for a moment. What the-
"According to Zatanna, the spell should only last about twenty-four hours." Bruce's voice startles Jason slightly. He forgot the man was the cave as well, being the one who called Jason in the first place to tell him what had happened. "Tim and I are still looking for the rogue magician, and Damian is with the Kents at the moment. Would you be able to keep an eye on him until this wears off?"
"I keep telling him I'll be fine by myself, but he won't listen to me!" Dick complains from where he's now perched precariously on one of the guard railings of the cave. Jason raises an eyebrow at that, as if to say do you see yourself right now?
"Dickhead, you can barely take care of yourself in your normal body."
"That's not true!"
"When was the last time you ate something other than cereal while at your apartment?" The silence is telling. "Exactly. I'll watch the twerp for you B, but you'll owe me."
Dick crosses his arm and pouts. It's kind of adorable, but Jason would rather shoot himself than admit it out loud.
"Maybe you have been de-aged mentally, Dickie. You're sure acting like a little kid." Jason can't resist the teasing comment.
"I'll show you a little kid." Dick snaps, before leaping off of the railing to latch onto Jason's back. Jason attempts to throw him off, but the boy's grasp is strong. Their wrestling only escalates from there.
(Bruce can't help but feel like he's making a mistake.)
By hour eighteen, Jason just wants this to be over already. Dick may claim that he hasn't been de-aged mentally, but being inside of a younger body is definitely affecting him in some way. The boy is so energetic, reminiscent of the one Jason had heard so much about during his own time as Robin. The boy who swung from chandeliers and raced around the manor, filling the whole place with cheerful laughter.
Jason would find it endearing if it wasn't for the fact that he's the one stuck dealing with him.
It had been fine in the beginning. When they had made it back to one of Jason's more stocked safe-houses, Jason had easily gotten the boy to settle down for the night on the sofa. Dick hadn't woken up until well into the afternoon, his growing body needing the rest despite him not actually being a kid.
Jason wishes he could return to those blissfully silent twelve hours. Twelve hours without a bouncy Dick Grayson popping up around every corner, loudly chattering away about everything and nothing at all.
It's only been four hours and Jason already wants to rip his hair out. He might honest to god send Bruce a sympathetic gift basket for having dealt with this for as many years as he did. Jason gets why the man always seems so tired now.
He also gets why he pawned Dick off to Jason. He's annoyed, but he understands.
"Jasoooooon." A whine comes from too close to Jason and he groans. Opening his eyes, Jason can't help but startle when he sees bright blue eyes less than a foot from his face.
"What the-" Jason pulls back as far as he can, which isn't much considering the back of the sofa is right behind him. He quickly takes stock of just what is going on.
Jason is sitting on the sofa. He remembers that part, remembers sitting down in hopes of getting a minute away from the hyper being that is Dick Grayson in a young body. What he doesn't remember is when he closed his eyes, or when he must have drifted off. What he doesn't remember is when Dick had managed to crawl on top of Jason's lap to kneel on either side of Jason's thighs.
"Geezus, kid!" Jason exclaims.
"I'm not a kid, Jay." Dick's pout seems to claim otherwise. Jason wisely chooses not to voice this thought.
"What do you want, Dickhead?" He replies instead.
"I'm boooored."
"Of course you are." Jason groans. "Why are you bothering me, then? Go find something to do."
"Let's do something together."
"Yeah? Like what?" At Jason's words, Dick settles himself down to rest on the heels of his feet. This, of course, lowers him more onto Jason's lap and- fuck. Jason knew before how small Dick became, but having the boy in his lap like this? It really emphasizes just how much bigger Jason is. Jason could easily break the boy if he wanted to. Could snap him in half. Could split him wide open with his co-
Where the fuck did that thought come from?
"-son?" Jason forces himself to refocus on Dick, not wanting to dwell on the thoughts that just tried to make themselves known.
"Sorry. What?" Dick doesn't reply. Instead he just looks thoughtfully at him. Jason wants to squirm in place, but holds himself back. "Why are you looking at me like that?"
Dick still doesn't respond. Instead, he lifts himself back up high on his knees. However, this time when he does, he presses forward slightly so that he's chest to chest with Jason. This would have been fine, if it didn't also bring his front in direct contact with Jason's crotch, where his cock is slowly growing interested in both Jason's lingering thoughts and Dick's actions.
"I think," Dick finally says after the silence starts to become tense, "I just thought of something we can do together."
Jason isn't able to say anything before Dick lowers himself down again. This time, it's a slow movement. Deliberate. And instead of landing on his heels like before, Dick's ass lands directly on top of Jason's cock. Jason can feel the crack through Dick's pants and he has to stop himself from rubbing his clothed cock along it.
"What are you doing?" Jason whispers, his voice low and breathy.
"What does it look like?" As if to chase any doubts away about Dick's intentions, the other grinds down. Still slow, but oh so delicious. Jason has to hold back a groan.
"Dick, we can't do this." Jason tries.
"Why not?" Dick tilts his head, blinking. God damnit, it shouldn't be as hot as it is with how young Dick looks right now.
"Because you're a kid right now!"
"Physically." Dick points out. "Mentally, I'm still well above legal age. So it's not like I can't consent."
"But-" Jason starts but is cut off.
"Besides, you're obviously interested." To prove his point, Dick grinds down on Jason's rapidly hardening cock.
"And what does that say about me?" Jason snaps. "That I want to fuck my brother, when he looks like a kid."
"What does it say about you that you want to fuck your brother at all?" Dick replies cheekily. He follows it up with, "What does it say about me that I want to fuck my brother in return?"
Jason's breath hitches at those words. "You do?"
"I wouldn't be offering if I didn't." Dick's hands start roaming then, fingers running along Jason's sides. It sends a shiver down his spine. Dick leans forward so that their chests are touching once more, and his face is inches from Jason's when he speaks next. "Come on, Jay. Don't you want to help me burn this youthful energy?"
"Fuck, Dick." Jason breathes out softly. He makes no move to stop Dick's movements though, even as they grow bolder.
Dick's hands work their way under Jason's shirt, doing nothing more than caressing as the boy leans down to place kisses on Jason's neck. Jason sighs at the feeling, tension leaving his body as he decides to just let it happen. He can feel the smirk on his neck when Dick registers it.
Slowly, Dick works his way down, leaving little kisses from Jason's ear down to his collar bone. His hands are still roaming, and Jason expects his next move to be lifting the shirt to take it off. That's why it catches him off guard when Dick decides to latch onto his nipple through the t-shirt.
Jason groans, feeling as Dick rakes his teeth lightly on the clothed peak. His other hand reaches up to play with the untouched nipple, and Jason can't stop the way he bucks his chest forward into the touch.
"That feel good, Little Wing?" The nickname is what snaps Jason out of it. Oh no. He's not the little one between the two of them. Especially not right now.
With that thought, Jason quickly knocks Dick onto the sofa, moving on top of him before the other can process what happened. The boy is now caged under his body, and holy shit.
When Jason was told that Dick was physically de-aged to a teenager, he definitely hadn't imagined that less than a day later he would have the boy pinned on his sofa, face red and eyes blown wide. And yet, here he was. And fuck was it a sight.
Jason leans forward and rests his forehead on Dick's. He looks him in the eyes as he asks, "are you sure you want this, Dick?"
Dick's response comes out as a breathy whisper. "Yes."
Jason connects their mouths, and he can feel Dick sigh into it. He doesn't rush it, doesn't heat it up. He just languidly moves their lips together, flicking his tongue out lightly every once in a while to taste the other. Dick whimpers, trying to pick up the pace, but Jason forces him to keep it slow.
Jason pulls away and Dick whines. "You're not the one in charge here, Little bird. But don't worry, I'll take good care of you."
Dick shivers, and Jason isn't sure if it's from the nickname, or from how husky his voice has already become. Jason leans back down to connect their lips again. This time, he allows the kiss to become deeper. Still not fast, not heated, but he allows the curious tongue to lick his pallet and tangle with his own, and he does the same in return.
Dick bucks up, trying to rut his crotch against Jason, but Jason is too far away for him to make contact. Jason gives Dick's bottom lip a gentle tug before pulling away. "You getting impatient down there, Dickie? Can't help yourself from trying to rut against me?"
"Please, Jay." Dick pleads. He ruts again, hoping for a different outcome. It doesn't work. "Please."
"You beg so pretty." Jason can't help but coo. "My pretty little bird, begging so nice under me."
Jason lowers himself down so his body is flush with Dick's. But when the boy tries to rut up again, Jason makes sure to hold his hips down to prevent the movement. Only when the boy stops trying to move does Jason grind down, slow and teasing. Dick gasps loudly at the feeling.
"That feel good, little bird?" Jason leans down to leave a kiss to Dick's neck. Dick mewls at the feeling, squirming and tilting his neck to give Jason more access. "That's it. Good boy."
Dick shivers again, Jason feeling it through every point of contact between them. Jason continues leaving kisses on Dick's neck, sometimes sucking and nipping as well. Meanwhile, his hands make their way under Dick's shirt, slowly trailing up the boy's abdomen to his pecks. The definition Dick usually has is missing, being replaced by baby fat that covers much of his body. Jason can't help himself from pinching then soothing the chub as he goes.
Jason leans back from Dick's neck so that he can pull up his shirt. He doesn't take it completely off, just pushes it up to bunch under the boy's neck. When he's sure it won't slide back down, he lowers his head. Without warning, he takes one of Dick's nipples into his mouth, using one of his hands to pinch at the other at the same time.
"Ah!" Dick cries. His cries grow louder as Jason continues sucking and tweaking the buds, occasionally switching to give each one the same treatment. Soon, the boy is trying to squirm, although Jason can't tell if he's trying to move away from the sensation or closer.
"Jay." Dick's plea is desperate, and it's enough for Jason to lean back to take another look at him. His small body is laid out with his shirt hiked up to his chin. His nipples are puffy and abused, just as much as his lips. His whole chest is a bright red, his blush going all the way down his body. He looks like sin.
He's gorgeous.
"Fuck, Dick. Look at you." Jason leans down again to start trailing kisses down from Dick's belly button. When he makes it to his waistband, he slips a hand under, slowly dragging the pants down the boy's hips. He leaves the underwear, trailing his lips over the cloth and down to Dick's thighs.
"Fucking gorgeous" he whispers into the skin.
There, he resumes kissing and nipping. There's baby fat here as well, and Jason loves it. He gets carried away sucking at the soft flesh, and Dick is soon making his impatience known once more. His hips start bucking without Jason's hands there to stop them. Jason can feel the clothed erection rubbing against his forehead and he can't hold in the chuckle.
"Am I not giving you attention were you want it, little birdie?" Jason trails his kisses further up Dick's thighs until he's right next to the clothed cock. Still, he doesn't touch it just yet. Instead, he sucks the underwear beside it, until the cloth is soaked with his spit. He does this on the other side, before finally, finally, laying a kiss to the clothed tip of Dick's cock. The boy lets out a choked cry at even that little touch, and suddenly Jason is too eager to hear more of those noises to tease him any more.
Without another word, Jason is pulling down Dick's underwear, freeing his cock from its confinement. Dick groans, and Jason can't help but lick his lips at the sight before him. Dick is so small right now, and his cock reflects that. It's so cute, the head a pretty pink and leaking precum from the slit.
Jason leans down and gives the cock a slow lick from base to tip. Dick moans at the feeling, which turns into a full on shriek as Jason proceeds to take the whole thing in his mouth. This young and small, Dick's cock doesn't even touch the tip of Jason's throat. That's fine though, it allows Jason to give it all the attention it deserves.
He swirls his tongue along the cock in his mouth, feeling it squirt out a bit more precum. Jason groans at the taste, and the vibrations of the noise makes Dick let out a groan of his own. Dick's hands find their way into Jason's hair, and they're pulling tight as Jason continues working away at his cock.
It doesn't take long to get Dick right at the edge.
"Ah- h, Jay. Jay, I'mma, fuck I'm gonna cum." Jason redoubles his efforts and is rewarded by a loud cry and spurts of warm liquid sliding down his throat. Jason works Dick through the orgasm, making sure not to let a single drop of cum go to waste. He keeps going even as the liquid trickles to a halt and soon Dick is whining and squirming in overstimulation.
Jason spends another few seconds drawing the noises out of the boy before finally deciding to grant him mercy. He pops off of the cock and leans up to be eye level with Dick.
"How was that, Little birdie?" He asks.
"Fuck, Jay." Dick's voice is high and breathless. "Fuck me, please!"
Jason's eyes widen. "Are you sure about that, Dickie? You're real small right now, I don't want to hurt you."
"Do it," Dick begs. He wraps his legs around Jason's waist, grinding his already hardening cock against Jason's own clothed erection. "Please! I need you. Need you inside me. Need to feel you tear me apart. Now, and again when I'm back in my regular body."
"Fuck." Jason breathes. He wants to comment on that, on the fact that Dick's implying this is not a one time thing, but he decides against it. They'll figure that out later, but for now Jason needs to be inside of that tight hole. "Ok. Fuck- yeah. Ok."
Jason wastes no more time, discarding his clothes as well as the rest of Dick's. They're both completely naked now, and fuck does the difference in size really show now. Jason, large and muscled, looms over the small form of a young Dick Grayson beneath him. Jason's cock is standing erect, and it's size is easily double that of the one below him. He could easily break him with it if he wanted to.
And god does he want to.
Jason moves his hand in front of Dick's face, tracing the boy's lips with a finger. He presses the finger between them slightly. "Suck."
Dick follows the command easily, taking one, then two of Jason's fingers into his mouth. He swirls his tongue around them, making sure to coat them both with spit. Jason takes the time to admire the sight, admire how his hand dwarfs the boy's head. When Jason pushes his fingers down to open the boys mouth, he can see how just two of his fingers easily fill a good portion of the space inside. Jason can't help his groan at the sight.
Jason pulls his hand back and replaces it with his mouth. He proceeds to devour Dick's mouth, heated and fast in a way their prior kisses weren't. Meanwhile, he reaches down with his coated hand to trace circles around Dick's rim. He presses in slowly with one finger, swallowing Dick's gasp as he does. Dick's hole is tight, tighter than anything he's ever felt before. It's death grip on just the one finger has Jason picturing just how good it will feel once he gets his cock in there.
Pulling away from Dick's mouth, Jason whispers, "you're doing so well Dickie. So good for me. So fucking tight. You're perfect."
As the boy shivers at the words, Jason takes the opportunity to start moving the finger. In and out, Jason thrusts, working his way deeper into the small body. Dick's eyes are shut, and small noises are leaving his mouth with every movement.
Eventually, Jason adds his second finger. Dick's hole clamps hard at the intrusion, and the boy himself lets out a whimper of pain.
"Shhhh." Jason soothes, running his other hand up and down Dick's sides. "You're okay, baby. I've got you." Jason moves his hand to Dick's cock and strokes it tenderly. Dick's whimpers turn to mewls. "That's it. Relax."
Slowly, Jason is able to work the second finger in all the way. It's a little dry, and Jason knows that if they're going to go any further than this they'll need proper lube. But for now, Jason is content to slowly start scissoring the two fingers gently, trying not to hurt the other too much. At one point, Jason has to lean down to let a lob of drool run onto Dick's rim to ease the pain, and it's then that Jason knows they really need to move.
When Jason goes to pull his fingers out, Dick cries loudly before wrapping his legs around Jason once more.
"It's okay, baby. I'm not stopping. I just need to go get some lube." Jason tries to pry the legs off of him, but Dick holds firm. "Come on, Dickie. I can't go any further without it."
Dick looks up at him with big wide eyes and a pout on his face. "Take me to your bed, Jay?" And fuck, Jason can't say no to that.
"Ok." He nods. Jason reaches his arms around the other and gets a firm grasp on his ass. He hauls them both up, the legs around his waist helping bring the boy with him as he sits and then stands with the boy in his arms.
He's light, and that's just another thing that reminds Jason of how small he is right now. Although, Jason's pretty certain he can carry Dick at his normal size, there's something about the ease in which he can carry this small version that makes his cock twitch. Jason would feel slightly embarrassed about the reaction, if it wasn't for the fact that he can feel Dick's cock between them do the same. When Jason looks Dick in the eyes, he finds amusement mixed in with the pure lust that's at the forefront.
Jason can't stop himself from leaning down to plant a kiss on Dick's lips. Dick smiles into it, and it must be contagious because Jason can feel the beginnings of one on his own lips.
Jason pulls away and starts walking briskly towards the bedroom. He almost trips when he feels lips suddenly latch onto his nipple. He looks down to see Dick, head bent to reach the bud but eyes looking up through his lashes to stare into Jason's own. The sight is fucking sinful and it makes Jason so horny it's not even funny.
Picking up the pace, Jason does everything he can to ignore the suckling, even when Dick starts using his teeth. He makes it to the bedroom quickly and wastes no time in pinning Dick once more beneath him.
"I would say you have no idea what you're doing to me." Jason pants as he looms over the other. "But I have a feeling that would be a lie."
Dick gives Jason an innocent smile, and Jason leans down to kiss it off his face. While kissing heatedly into the other's mouth, Jason is able to blindly reach over to his nightstand and grab the lube from one of the drawers. He doesn't look as he opens the cap and pours a generous amount on his fingers and Dick's rim. He doesn't bother closing it as he throws it on the bed and returns his fingers into the tight heat of Dick in one thrust.
Dick moans into the kiss, and Jason wastes no time in continuing his earlier scissoring. The lube makes the movement so much easier, and soon enough Jason is attempting to add a third finger.
"Fuck, Jay. It's so much!"
"Such a dirty mouth." Jason chides, finally sliding the finger in to the knuckle next to the other two. "You can take it, Dickie. How else are you gonna be able to be a good boy and take my cock?"
"Ja-ay" Dick moans, rocking his hips back into Jason's fingers.
"That's it, baby. Just like that." His third finger is in fully now, and he starts scissoring that along with the other two. He picks up the pace a bit, stretching the boy wide. Just as he's debating adding another finger, Dick lets out a yell.
"Aaaah! Right there. Fuck, Jay, please!" Jason angles his fingers so all three hit that same spot that has Dick screaming louder and louder. "Please, Jason! Please! Fuck me, I need it!"
Jason pretends to think as he continues pounding into Dick's prostate. "I don't know, Dickie. I don't know if you're ready yet. I don't want to hurt you after all."
Dick's voice somehow gets louder in his pleas. "Please, please. Fuck. I need your big cock in me now! I don't care if it breaks me. I fucking need it."
That's all it takes.
Jason growls as he yanks his fingers out of Dick. Grabbing Dick's legs, he yanks the other closer to his body and lines up his cock. He snatches the lube and squirts a bunch onto himself, stroking his cock so that it's fully covered. Jason wastes no more time after that as he slowly starts sliding into the tight ass in front of him.
And holy shit is it tight. Jason has to press quite a bit before the head is able to pop in, but when it does, the two of them let out matching moans. Jason rocks gently, letting his cock slide deeper and deeper into Dick's tight walls. He's not even halfway in when Dick's noises turn slightly painful.
"You're doing so good, baby. Taking me so well. I can't wait to fill you all the way. Gonna feel so good. Even if it breaks you." Dick moans, the sound still tinged in pain. Jason reaches down to grab Dick's cock between them once more. He stokes it firmly, trying to distract the boy as he slides deeper and deeper.
Then, when there's only about a quarter left to go, Jason decides he's had enough. He slams the last bit inside of the boy, and revels in the shaky scream the other lets out. Jason's eyes widen, and he looks down at the hand still on Dick's cock, which is now covered in cum.
"Is this for me?" Jason asks, bringing the hand up to his face to give it a lick. Dick is watching him through half-lidded eyes, and Jason takes a moment to lean down and check in. He presses his lips to Dick's and whispers into them, "you doing okay, Dick? We don't have to keep going if you don't-"
"Keep going," Dick cuts him off breathlessly. "Wreck me, Jay."
Who is Jason to deny such a sweet request?
Jason pulls out until just the tip is still inside Dick, before slamming back in. Dick moans and Jason does it again and again, angling his thrusts different every time until he finds Dick's prostate. From there, Jason gives no mercy as he pounds into the bundle of nerves over and over again. Dick is a fucked out mess beneath him, his open mouth letting out no noise as he takes what Jason gives him.
Jason himself is rapidly approaching the edge. He grasps Dick's cock once more, ignoring the whimper Dick lets out at the touch. "Come on, baby. Can you give me one more?"
Dick is shaking his head, mumbling incoherently all the while.
"I think you can. I believe in you. One more, and then we can stop. Just one more."
Jason doesn't give Dick any mercy, pounding relentlessly into his prostate while tugging fiercely at his cock. The boy is trembling beneath him, but Jason pays him no mind. He feels his own orgasm creeping up and knows its only a matter of time before he finishes.
Jason leans down to kiss Dick's open mouth. The other is too fucked out to reciprocate, but that's fine. Leaning down further, Jason takes one of Dick's nipples into his mouth instead and gives a sharp suck. That's all it takes before Dick is cumming for a final time with a silent scream. His hole seizes as he does, clamping down and bringing Jason to his own orgasm.
Jason moans loudly as he spills into the small body beneath him. He keeps moving, working them both through the entirety of their climaxes before lowering himself down to put his weight onto the boy. He doesn't attempt to pull out for now, simply allowing his cock to soften as he crushes Dick with his weight.
They're both quiet as they bask in the afterglow. Jason does eventually pull out, flopping onto the bed beside him. He still doesn't say anything, just lays there on his back as he tries to catch his breath. Feeling something touch his side, Jason looks down to see Dick cuddling up to him. As if sensing his gaze, Dick meets his eyes.
"Hey," Dick says with a tired smile.
"Hey." Jason returns just as soft. "You know we're gonna have to talk about this, right?"
"Not now. Sleep first?" As if to prove a point, Dick lets out a large yawn. The sight of it on his small face is adorable, and Jason can't help but press a soft kiss to the top of his head in response.
"I guess we did end up using up your energy, huh?" Jason teases, laughing at the weak slap Dick gives him in response. "But sure, Dickie. We can sleep now."