18 weeks into the pregnancy
As more and more time passed through the pregnancy, Tony was still blown away by how easily Steve adapted. Tomorrow they had the ultrasound where they would find out the sex of the baby and they were so excited.
His belly had officially “popped” a week ago, and suddenly Steve looked twice as big as he had almost overnight. His center of gravity was changing, and he definitely didn’t fit in any of his old clothes. The trend of gaining more weight than he probably should have continued, even so, Steve was happier than he ever had been.
The day Steve felt the pup kick for the first time, he’d been almost hysterical. He shouted for Tony from the bedroom, giving his alpha a fucking heart attack. Tony rushed to the bedroom, slamming his shoulder into the doorframe on the way until he found Steve in the bathroom.
“What happened?” He asked, worried.
Steve took his hand and moved it lower down on his belly, where Tony was just barely able to feel a push against his palm. He gasped, eyes snapping up to Steve’s.
“Baby Bean is kicking?” He put his other hand on Steve’s bump too, rubbing softly.
“They are,” Steve’s eyes filled with tears, “Tony this is really happening, that’s our pup.” He pulled Tony forward so he could kiss him, “thank you so much.”
“Thank you, baby. You’re giving me everything too.” He wrapped his arms around him, nosing at his bonding mark. They spent the rest of the night cuddling together in bed, Steve’s shirt pulled up under his softening pecs guiding Tony’s hand around his belly when he felt Baby Bean move.
These are the moments that Steve always dreamed of when he thought of what it would be like to be pregnant. And yet again Tony marveled at how Steve was meant to do this, just like he, himself said.
One of Tony’s favorite parts of this pregnancy was watching Steve grow. It made Tony’s alpha happy to know his omega was round with his child and was well fed, well taken care of which ensured that his pup was too. Tony could barely keep his hands off of his mate.
The softness Steve gained around his neck and chest were Tony’s favorite to nibble on, and he loved kissing the dimple that had newly come to light on Steve’s right cheek. The dimples on his back (that no one else could see) were also some of his favorite things to kiss. Steve rolled with the small amount of excess weight, he didn’t see any issue in it and he wasn’t worried about it.
Tony was so thankful Pepper had agreed to be the new CEO, he needed this time with Steve, and he only had about four more months of this and he intended to enjoy every minute.
The next morning Steve woke up first, reveling in the feeling of Tony passed out next to him with his hand on the side of Steve’s belly. After a couple of minutes he gently slid out of bed and stood up to stretch. He went to the bathroom to relieve himself and brush his teeth, not expecting Tony to wake up soon.
To his surprise Tony had woken up and had successfully sneaked up behind him to wrap his arms around his omega. Well, as far around his omega as he could. He placed his hands on Steve’s bump and plastered himself against Steve’s back, grinding his morning wood into his plump ass. Steve placed both of his hands on the counter, gripping it tightly.
“Good morning baby.” Tony breathed in Steve’s ear, using his fingers to pull Steve’s sleep pants down over the perfect curve of his ass. “We have your appointment in a couple of hours, how about I spend the morning fucking your brains out?”
Steve moaned, feeling slick leaking from his entrance and his dick hardening. “Yes, please babe. I need it.” He wiggled around until his pants were able to fall to his ankles, with Tony’s help. The brunette dropped his pants too, scooting back just enough to part Steve’s already dripping wet cheeks, but before he could push a finger in, Steve begged, “No just do it Tony, I need it! I need you in me, please just do it!”
Never one to argue with a good thing, he did as the blonde asked and entered him quickly, all in one go. They both groaned, and waited a moment for Steve to adjust.
This couldn’t have been super comfortable for Steve as he was big enough to have to push away from the counter a bit so his belly wasn’t squished against it, but he took it amazingly all the same. They breathed together one more time before Tony began to move. Steve had produced enough slick that he was basically gliding in and out. He pressed his face into the taller man’s shoulder blades, and bit the right one before running his hands up over Steve’s beautiful belly. Steve moaned and bent over a little more for a better angle, until he was nailing his prostate every time.
Tony moved his hands up to Steve’s pecs, which were softening into breasts at this point. They were preparing to hold milk to feed their pup, which meant they were growing slowly bigger along with the rest of him.
“You’re getting so big,” Tong whispered, though it was tinged with a growl. “your belly, your tits, your ass. You’re fucking beautiful, omega. So perfect.”
“I’m getting fucking fat,” Steve huffed out, giggling. “I’m already bigger than a normal omega should be at 18 weeks and we still have months to go.” He reached up at that moment to pull his shirt hem down a little, as if he didn’t even realize it. “And the worst part about it is I don’t even care.” He was breathing hard with the effort it was taking to hold himself in this position. “I truly don’t care if I ever get back to my original weight. Obviously I’m going to try but I don’t care if I’m chubby or fat as long as this baby is happy and healthy. I don’t care if I’m never captain America again, this? This baby? This is worth it.” Tony came at that, Steve following right after him. He slipped out of Steve, before turning him around to devour his mouth.
The two took a quick shower before heading to Steve’s OB appointment. Dr. Tanner was already waiting for them in a room when they arrived.
“Well, hello!” She called with a smile, “How have things been?”
She motioned for the two of them to enter, and took Steve’s hand to lead him to the exam table. They spent the first few minutes talking about what they’ve been experiencing and what they will be experiencing soon. Finally they were done talking and she asked excitedly if they wanted to learn the sex of their baby today. They had talked about it prior and decided that yes they did want to know.
Dr. Tanner got everything set up before putting the gel on Steve’s stomach and moved the wand around until they could get a good picture.
Every time they’d gotten an ultrasound, even the sound of their pup’s heart beat made their eyes tear up, and this time was no exception. She let out a soft wow and pointed to the screen.
“You’re having a little baby boy,” she explained what she was seeing on the monitor while both parents sobbed. They asked for multiple copies of the picture before they left and thanked Dr. Tanner before heading home for the day.
The pack was gathered in the communal living room when they arrived home and Steve excitedly handed each member a picture of the ultrasound. “We’re having a boy.” He said in way of greeting. The team cheered, congratulating the happy couple.
They all decided they could use a movie night so they ordered food and gathered round to watch a movie. This was one of Steve’s favorite things, getting to be around his whole pack. His inner omega felt safe and protected and cared for, and he started to purr. His purr seemed to soothe the rest of the pack, much like it did Tony. And much like with Tony, they knew it meant Steve was perfectly content.
Once the movie was over and dinner was eaten, everyone went their separate ways. Tony led Steve to their bed, ordering him to sit down so they could do their nightly stretch mark cream routine. Steve wasn’t even sure he’d have stretch marks with the serum but he wanted to be sure.
Tony got undressed and climbed into bed next to Steve but before he knew it Steve had climbed up on him. “Can I ride you?” He asked, a cute little pout on his pretty face. Steve was definitely enjoying the pregnancy hormones, which made it even better for Tony, too.
Tony smirked at him, “I thought you’d never ask.”
Steve laughed, he lined himself up with Tony’s rock hard cock and slow let himself down onto it. He tapped Tony’s thighs to signal him to bend his knees for Steve to lean back on.
In this position Tony had a front row view of Steve’s belly and sweet, sweet tits. As the blonde began to move up and down, Tony began to thrust in time with him. This was one of his favorite ways to fuck Steve, and Steve loved it too.
Tony swept his thumbs over Steve’s nipples and massaged his breasts, he was excited to see what size they would grow to when it was time to nurse. Eventually they would shrink back down to normal size when Steve’s body was done producing milk but Tony looked forward to this when they had other babies too.
The sensation made Steve gasp and stutter in his movements. His nipples had been so sensitive lately it’s been hard wearing just a shirt, and Tony knew exactly what he was doing.
He wished Steve could lean forward more so he could run his tongue over one. He would do that next time. Or maybe later, he thought to himself. Steve was close now, his own cock leaking and standing up as much as it could under his belly.
Tony could truly wax poetic for hours about how sexy his mate is. Everything about him was perfect and sexy, but now? When he was so pregnant with Tony’s pup his clothes didn’t fit anymore? The sexiest thing he’s ever seen, 24 hours a day, seven days a week.
Steve came with a shout as soon as Tony wrapped one hand around his dick and put the other one on his belly. Tony just took a few more bounces from Steve to come, waiting a few moments before Steve moved up and off. He rolled onto his back, breathing heavily. Tony watched Steve’s belly move up and down with his deep breaths, wondering how he got so lucky with finding Steve.
Tony rolled onto his side to kiss Steve’s cheek with a big smacking sound, making him giggle. “Have I ever told you I’m the luckiest alpha in the whole world, and I have the most perfect, sweet, sexy omega ever?” He said it all softly, carding his fingers through Steve’s blonde hair.
Steve blushed, looking at Tony sweetly. “Well, not in the last five minutes.” He pushed his forehead against the side of his alphas face. “I could stand to hear it again,” he kissed the brunette’s jaw, “and again, and again.”
Tony looked at his mate with all the love he could muster and responded, “it’s my job to tell you as many times as you want for the rest of our lives how perfect and sweet and sexy you are. I won’t let you forget.” Tony started peppering kisses all over Steve’s chest and face. “You are perfect,” kiss, “You are beautiful,” kiss, “You are sweet,” kiss, and continued on the rest of his body. Steve was practically glowing with how much he was reveling in all the praise. Steve knew how much Tony loved and cherished him.
Tony retrieved a towel to clean the two of them off before they cuddled together in bed.
“I love you, Tony. I’m not half as good at anything as I am when I’m doing it next to you.” Steve said sleepily, cuddling in extra close.
Tony squeezed Steve as hard as he could, knowing his mate can never be hugged too tight. He kissed his lover’s temple three times quickly, “I love you more than anything baby, forever. In this lifetime and all of our others.”
“We’re having a boy,” Steve whispered, eyes watering. He had a sweet smile on his face as he looked at Tony. “I hope he looks like you.”
Tony grinned, whispering back, “Well I hope he looks like you.” He blinked as he realized something. “Wait, no. If he has your pretty blue eyes I’m never going to be able to say no to him either. He can look like me, that’s fine.”
Steve snorted, “We’ll be the perfect team, unstoppable then. I’m liking the sound of this more and more.”
“Damn it, I shouldn’t have said anything.” Tony chuckled.
“Yeah, no you really shouldn’t have.” Steve tucked his head under Tony’s chin. “I can’t wait to meet him.”
“I can’t either, sweetheart. I can’t either.” Tony responded, unsure if Steve was asleep already. By the lack of response and his deep breathing he assumed he’d fallen asleep.
Tony wasn’t so quick to sleep, he stared at the ceiling and imagined what their future was going to be like, meeting their son, watching him grow up. Tony was eventually lulled to sleep dreaming about his perfect omega.