𝐏𝐞𝐭𝐞𝐫 𝐏𝐚𝐫𝐤𝐞𝐫 𝐎𝐧𝐞 𝐒𝐡𝐨𝐭 𝐁𝐨𝐨𝐤

Grandpa Stark

Parings → Peter Parker x Stark! Reader

Warnings → fluff

Summary → At Tony's birthday, you reveal your pregnancy, leading to mixed reactions.

｡･:*:･ﾟ★｡･:*:･ﾟ☆ ｡･:*:･ﾟ★

You and Peter were on your way to the compound, your nerves making the drive feel like an eternity. Peter was gripping the steering wheel, his knuckles white with anxiety.

"I'm telling you, he's gonna kill me," Peter said, his voice trembling. "He'll blast me off Earth, and I'll never see my kid."

"Peter, stop being such a drama queen," you said, trying to keep the mood light. "Dad loves you."

"I'm serious, babe!" Peter's eyes darted around the road as if he was expecting an Avengers-level attack at any moment. "He won't be happy that I made his daughter pregnant."

"Peter, we're married," you reminded him with a teasing smile.

"I KNOW!" Peter practically shouted, his stress palpable. "But it's Tony Stark we're talking about! He's a genius billionaire with a high-tech suit. I don't even have a suit like him!"

You chuckled, reaching over to squeeze his hand. "Relax. It's going to be fine. Besides, you're not just telling him you're going to be a dad-you're giving him a grandkid. He'll love it."

Peter gulped. "I hope so."

As you pulled into the compound's driveway, you could see Tony's birthday party in full swing. The decorations were up, and everyone was mingling. Tony, Pepper, and Morgan were surrounded by the Avengers, with Happy looking over the festivities with his usual vigilance.

You and Peter walked in, and Morgan immediately ran over to hug you. "Y/n!" She squealed, her excitement almost palpable.

"Hey, Morgan!" You replied, giving her a big hug. "Happy birthday to Dad, huh?"

"Yeah!" Morgan nodded vigorously.

Peter was fidgeting beside you, eyes darting around nervously.

"Pete, you look like you're about to face Thanos again," Tony joked, noticing Peter's nervousness as he walked over to greet you both.

"Just a little gift, happy birthday, dad," you said, trying to sound casual.

"Oh, honey, you didn't have to but you know I love gifts."

You chuckled.

_____

Dinner was served, and despite the delicious food and lively conversation, Peter couldn't seem to relax. He kept playing with his fork and glancing at the clock, as if hoping time would slow down or speed up.

Finally, it was time for the presents. You exchanged knowing glances with Peter and headed over to where Tony was opening gifts.

"Alright, let's see what we've got here," Tony said, grabbing your gift first, tearing into the wrapping paper with his usual flair. When he pulled out the onesie with "The Best Grandpa's Grandkid" printed on it, his face registered confusion for a moment.

Everyone else was busy chatting with each other, but you watched Tony's reaction closely. As the realization hit, his eyes widened, and a huge smile spread across his face.

"This is... this is..." Tony started, his voice cracking slightly with emotion. "I'm going to be a grandpa?" Everyone's attention was on you and Tony now.

"Happy Birthday, dad."

All the avengers started congratulating you. Natasha was the first to approach you. She enveloped you in a warm hug. "You're going to be the best mom," she said with a sincere smile.