Bruce
Bucky's not much for Yoga but he's bored and the other Avengers are out at some press thing and he doesn't want to be alone either so he settles himself to watch Bruce as he shifts himself from one position to the next.
Bucky watches him cycle through them several times before he attempts them himself. He manages to switch smoothly between two positions before the attempt to change into the third makes him fall over with a crash.
Bucky sighed, he's been off balance since he let Tony take his arm off in order to make him a new one, one that wasn't stained with the blood of those Hydra made him kill.
Bruce startled and looked over at him, a laugh hiding in his throat.
"Are you okay?" The Omega asked.
"Yeah, just damaged my pride, nothing unusual." Bucky said as he lay on the floor.
Bruce let out a chuckle, "You could have said something, I'd have helped."
"You were focused." Bucky shrugged as he sat up.
"Come on, I'll show you some easier positions, they shouldn't be compromised by you being lopsided." Bruce said and then froze, "Uh..."
But Bucky was laughing, everyone else seemed to tiptoe around his missing arm and it annoyed him, Steve's tiptoeing was the worst because he'd look at where his missing arm was and his eyes would go misty and teary and he'd apologise for not coming back for him.
Bucky hated his Omega's distress, the other man could not have known he survived and even if he had Bucky would not dare risk his Omega falling into Hydra hands, not for anything in the world.
With all Hydra had done to him Bucky could only imagine what they'd have done to an Omega with the Super Serum of Erskine's.
Visions of his Omega being forced to carry child after child only to have them torn away from him to be trained to kill often kept him awake, those nightmares were almost worse than the ones of his tiny Omega sat in a bath with blood colored water swishing around their hips.
Lord knows Bucky remembered his captors trying to breed him, but the thing was, for most Alpha and Omega pairs, if the Bond was strong enough, an Alpha wouldn't be able to impregnate any Omega but their own and an Omega would not accept a child in their womb but their Alpha's, not as long as they both lived and sometimes not even after death and Lord knows his and Stevie's Bond had been stsronger than steel.
They'd been synced long before they had Bonded and Mated, Bucky only going into light, rare Ruts when Steve had his Heats, nothing like what he fellow Alpha had described, the loss of control and the need to take and breed, no, Bucky had always been in control, been able to tell when something was too much, when he needed to be softer, or needed to pause.
His mother had stared at him when he'd told her, had told him that that only happened after years of being together, Mated and Bonded but Bucky hadn't yet Bonded or Mated Steve then, at fourteen Steve had been too young still.
But Steve had never wanted another, though with his slight figure he'd been looked at by many Alphas who limed something they could throw around, even after his fall Bucky somehow knew Steve had not even considered a new Mate to replace him, though it would have been easy for him to allow Sam the role.
Bucky had seen the other Alpha's desire before Sam seemed to realize that Steve would never have looked at him as more than a friend, the other man accepted that and had stopped putting out pheromones that were meant to draw an Omega's attention when Steve was around, though those pheromones seemed to make a comeback around Natasha.
Bucky was kindly ignoring their awkwardness after informing Sam of what would happen if Natasha's heart got broken, and doing the same to Natasha if she strung Sam along too far, a spider could have her games and traps but not at the expense of their family members.
And Sam wasn't his child but he was still family.
Bruce waited patiently for Bucky's laughter to die down before they began their Yoga again.
Bucky woke up in the morning sore and achy in places he didn't know he had, he groaned and rolled over to the sound of his Omega's laughter and he buried his head beneath his Mate's pillow.
His Mate pulled the pillow from his head and smiled down at Bucky's pained glare.
"There's a warm bath waiting for you and Bruce gave me some massage oil for your muscles." His Omega informed him as he pressed their foreheads together, "If you want...we could share the bath, I have the day free because the kids are all off on their own Date nights."
Bucky grinned and pressed his lips to Steve's, "You are such a good Mate."
Steve's eyes shuttered slightly before he moved to tuck himself against Bucky.
"I try." Steve whispered.
Something about how Steve said that made Bucky pause, but Steve was clutching at him and burying his face in his neck, something he'd always done when he lost a child and Bucky couldn't bring himself to ask, he didn't have to, somehow he knew.
He knew that there had been one more lost child after he fell from the train so long ago, that Steve, his precious Omega had had to go through the loss alone, like he hadn't had to before.
Bucky wrapped Steve up in his one arm and held him tight, the bath could wait, his Omega needed him, his Mate was grieving and Bucky let a few tears of his own fall to match the ones that wet his skin, and Bucky grieved with him.
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A/n: this was not meant to have the info dump and sadness that it does, it was just supposed to be Yoga with Bruce, honest.
I do not do Yoga so i left it vague.
Sorry about the sad but you do have to remember that Steve has lost children, and for a lot of Omegas in the 30's and 40's ability to have children was the majority of their worth, that Steve never once got more than 3 or 4 months in his pregnancies was like saying he has got any even with Bucky's assurances each loss was a blow to his self esteem and added with the grief of losing a child Steve hasn't always been steady in his self worth.
The Serum helped bolster him a bit but after losing Bucky in the Mountains any progress he'd made went down the drain, it certainly didn't surprise anyone that Steve went off on a suicide mission to die, even if it was to save the world.
Waking up in the future, alone and the cold way the majority of S.H.I.E.L.D. handled him it made sense to cling to Coulson who started to treat Steve like a person when he found out about the listening devices, and when he lost the baby he clung as much as he could, Coulson may have been getting suspicious about Steve's dynamic before he died and then Coulson got killed and Steve was a bit adrift before deciding that the Avengers needed a mom.
He'd been using them as a life raft until Bucky came back and then Bucky needed him to be strong and now Steve is sort of on his way to a break down now that Bucky is settling.
For what ever reason, her own curiosity or even her attempts at protecting him from scrutiny whatever, Natasha has not told the others Steve is and Omega and swore Sam to secrecy.
Also side note: Any person that can carry/give life is called mom regardless of being male or female, though the younger generations have been slowly beginning to call Omega Males dad as well as Alpha Males. The same with Alpha Females being mom instead of dad just because they sired the child.
Alpha Females and Alpha Males were called dad because they sired the children.
Steve wants to be called mom, he likes it when his kids call him that, even when it's jokingly, because for the longest time he never thought he'd get to be called mom, especially after Bucky's death and the loss of his baby.