Chapter Text
Tim’s first heat arrives sooner than Bruce expects it to.
Not by much. It’s clearly been on the horizon for a few weeks now, Tim’s scent getting riper and sweeter, that milky pup-scent going warm and sugary as he gets ready to go into heat for the first time. He’s been showing preheat symptoms too, getting even more cuddly than usual, his sex drive steadily increasing. Bruce thought they were still at least three days out, but he’s not too surprised when he gets the call from Alfred. Tim’s been sent home from school due to heat symptoms, and he needs his alpha.
Bruce closes things up WE as quickly as he can, notifying his assistant that he’s going on family heat leave and immediately beelining for the manor. His little boy needs his daddy, and Bruce will make sure to be there for him.
Alfred assures Bruce that Tim is doing just fine, and Bruce only pauses for long enough to change out of his suit. Heated-up omegas have very sensitive skin, tend to run feverish, and need lots of skin-to-skin contact from their packmates. Bruce hasn’t helped an omega through a heat since Dick left, but it’s easy enough to remember what they usually need. Bruce tugs on an old, soft pair of sweatpants, no shirt, and makes his way to Tim’s room.
Bruce knocks softly on the door. “Tim? Sweetheart, alpha’s here. Can I come in?”
The only answer Bruce gets is a pitiful, desperate keen.
Bruce slips inside the pup’s room, and immediately his nose is filled with the sweet, delectable smell of an omega in heat. Everything is slick and arousal and that delicious fever. Since it’s a first heat, there’s still that hint of pup-scent as well as that barely-blooming scent of an omega just starting to become a mature bitch. It’s a delicate scent, like flowers, and it’s absolutely exquisite.
Tim is in his nest, in the floor on the corner. The pup is still half in his school uniform, the button-down blouse ripped open, the little plaid skirt shoved up. Tim is playing with one of his teddy bears. It’s one of the big ones, and it has a nice little dildo attached to the front of it. Not too big, just about the size of Bruce’s two fingers. Up till now, it’s been just the right size for Bruce’s precious little pup. Tim’s slowly been training to take toys in his pussy, but he’s still been a baby omega, not quite ready for a knot.
Until now. Now, Tim is straddling the big bear and humping the dildo desperately, and his cunt is so sopping wet from heat that it’s dripping down the toy and onto the teddy bear. The dildo can’t possibly be satisfying the little omega anymore, that much is clear. Tim is flushed red, and the poor pup is crying, clutching onto his little dog stuffie Avery for comfort. He’s clearly been rutting his little baby cocklet into the bear’s tummy- its front has little spots of wet omega come. But it’s not enough, not for an omega going through their first heat. A healthy omega has between six and nine orgasms on a regular day. In heat? In heat, they’re pretty much insatiable. Dick used to have dozens, and still beg for more.
“Oh, sweetheart,” Bruce murmurs. He crawls into the nest with his pup, and starts gently rubbing Tim’s back. “Oh, you poor omega. It’s alright, alpha’s here now.”
Tim shudders, and fairly throws himself into Bruce’s arms. Bruce shifts in close so that Tim can stay on the bear, and wraps his arms around his pup. “Daddy!” Tim wails, eyes welling up with tears. “Daddy, it hurts.”
Bruce lets out a low, soothing rumble, hugging Tim tightly. “It’s okay, sweetheart. Daddy’s got you. It’s your poor, messy cunt, isn’t it? Is Daddy’s baby all messy? Just aching to be full, poor thing.”
Tim nods and sniffles, nuzzling his face into Bruce’s bare chest. “I keep- I keep playing with the bear you got me, alpha, but it’s not enough.”
Bruce growls gently, and a hand goes up to Tim’s head, stroking his hair. “No, of course not. Daddy will have to get you bigger toys for your bear, won’t he? Don’t worry, sweetheart. Alpha has bigger toys for you downstairs.”
Tim whimpers softly. “Really, alpha?”
“Really,” Bruce promises. “I’m going to take good care of you, sweetheart.”
Tim makes a soft, helpless noise, and buries his face in the crook of Bruce’s neck, nuzzling close and breathing in his alpha’s scent. Bruce can smell the relief in Tim’s scent, the way it makes him just a little less desperate, and that fills him with alpha pride. Tim trusts him enough now that he knows Bruce will take care of it. And that means the world to Bruce.
Bruce wraps an arm around Tim’s middle, and starts to rock him up and down. Tim shivers and melts into the hold, going limp, letting Bruce move his body. Tim’s legs go lax, and he’s not riding the bear anymore, just letting Bruce take care of him.
“That’s it, sweetheart,” Bruce croons. He reaches an arm down and rubs at Tim’s cunt. God, the baby omega really is so wet, absolutely gushing onto Bruce’s fingers. Tim’s slick smells so sweet. Bruce gently pushes a finger into Tim’s cunt, alongside the dildo. Tim lets out a breathy gasp, and then low moan. Bruce purrs in satisfaction. “That’s it, good omega. Let me in, sweetheart. It’ll feel so much better when you’re really full.”
“P-please,” Tim gasps out, and Bruce is pleased to note that Tim hasn’t forgotten his manners, even during his heat. Tim has taken so well to Bruce’s training, become such an obedient, polite pup. “Please, alpha?”
“Good pup.” Bruce pushes his two fingers deeper, and Tim makes a high-pitched sound. Bruce knows that Tim’s never taken anything this big before, and he can feel what a tight fit it is, Tim’s tiny little pussy being absolutely crammed full right now. But that’s what omegas in heat need- they need to have their cunts stretched around something big, they need to be stuffed full, they need to be fucked over and over. And Bruce intends to give his pup exactly what he needs. “So good, sweetheart. You’re taking that so well. That feels better, doesn’t it.”
Tim keens, nodding into Bruce’s shoulder, rutting desperately forward, grinding his messy little cocklet all over the soft fur of the bear’s tummy. “Yes, alpha- so good alpha- please, please, please-"
Bruce gives a low rumble. “Go ahead, sweetheart. Make your teddy bear all messy. Be good for alpha. Show me how much you like it when we stuff your little pussy all full.”
Tim comes with a pitiful little omega whine, all over his teddy bear. The little pup gasps for air, still clutching tight to his stuffie, leaning hard into Bruce’s chest. “Th- thank.” He’s a good omega, remembering his place, even though he can barely get the words out. “Thank you, daddy.”
Bruce purrs, and Tim, the big teddy bear, and the smaller stuffie all get wrapped up in Bruce’s arms, in a big alpha hug. Bruce leaves his two fingers in Tim’s sopping wet cunt, letting his boy stay nice and full. “Such a good boy. You’re so very welcome, pup.”
Bruce presses a gentle kiss into Tim’s hair, and starts mentally going over the plan. They’ve got maybe five minutes until Tim is a desperate, horny, insatiable mess again. Bruce has several ways to keep the pup occupied over the next few days. He should also make sure that Dick is on his way over. He knows that Dick would hate to miss this, and that Tim will be very happy to have his big brother's company right now.
Tim moans softly, and his scent is full of arousal and pack-love and sweet, sweet submissiveness. Bruce can just smell how happy the pup is that his pack alpha has come home, and it fills Bruce's chest with warmth. Bruce murmurs soothingly to the baby omega and rocks him in his arms, taking note of how Tim’s scent is getting even hotter by the moment, the heat not even fully bloomed yet. It’s only going to get stronger and more intense from here.
They’re just getting started.