Hey! Kelly’s Anon here, back with another request 🥰
I had this cute idea where it’s Kelly’s birthday and the reader is cooking him homemade pizza as a surprise for when he gets off work. She’s got his favourite beer cooling in the fridge and they’re just going to have a super chill and cosy night in together, watching whatever he wants on TV and doing whatever he wants. When Kelly gets home, she’s so busy in the kitchen that she doesn’t notice him right away. Leaning against the doorframe, he takes a moment to simply watch her- loving the fact that she’s padding around in just her fluffy socks and one of his Squad 3 T-shirts.
Kelly being his typical suave and flirty self, he decides to sneak up behind her, pressing his chest against her back, cornering her against the kitchen island. When she twists around to face him, he makes sure she’s looking him in the eye as he tells her how much he loves seeing her in his Squad 3 t-shirt which makes her blush. To make her squirm even more, Kelly makes a joke about how he wasn’t planning on having his pudding before his main meal, but he’s starting to reconsider… When she starts giggling and blushing even more, trying to hide her face, Kelly further teases her about it, absolutely loving the way he’s making her weak at the knees.
I will let you decide how it ends, whether he gets his pudding or if she makes him have his main meal first 😂 (I know you don’t write smut, so no worries about that, it can just be a ‘fade to black’ before anything like that happens!) I just love the idea of flirty birthday boy Kelly 😍😍😍 because I know he’d absolutely be playing the ‘it’s my birthday’ card to get his own way 😂😍
Hope that’s an ok idea and no pressure at all! Sending big hugs your way! 💕💕💕
Summary: For Kel’s birthday, the reader surprises him with homemade pizza, his favorite beer, and a cozy night in. When he gets home from shift and sees her in his Squad 3 shirt and fluffy socks, he can’t resist teasing her—especially since it’s his birthday. After flirty banter and pizza, the night ends with kisses, cuddles, and a perfect fade-to-black moment that makes it his best birthday yet.
It had been on your calendar for weeks.
No fancy restaurant this year. No wild party. Not even a night out at Molly’s. Just you and him — home, warm, relaxed, full of all his favorite things.
You’d been planning it in secret for days. Not that it was easy keeping secrets from Kelly. The man was as observant as he was stubborn, and he had a sixth sense for when you were hiding something. But this time? You pulled it off.
He was finishing up a 24-hour shift at the firehouse, and you had the apartment to yourself. You’d gotten up early, pulled on a pair of fluffy socks and one of his Squad 3 T-shirts — soft and worn from hundreds of washes, long enough to fall mid-thigh — and cranked some music while you prepped.
There was fresh dough rising on the counter, pepperoni, mushrooms, olives, and caramelized onions ready to go. You’d grated two kinds of cheese — because it was Kelly, and if you were going to surprise him with homemade pizza, it had to be perfect.
His favorite beer was chilling in the fridge, your shared blanket was already tossed across the couch, and the TV was queued up with Die Hard, The Godfather, and a few other options you knew he’d lean toward when you let him “choose whatever he wanted.”
You were humming to yourself, fingers dusted with flour, bent slightly over the pizza tray when you heard the front door click open.
Didn’t think much of it — you were waiting for the oven to preheat. You figured you had a few more minutes before he’d be home.
But he was quiet. Too quiet.
From the doorway, Kelly Severide stood frozen, arms crossed over his chest, a lazy grin tugging at the corner of his mouth. His dark eyes trailed down your legs, over the hem of his shirt, and settled on the way your messy bun bounced every time you padded across the tile in your socks.
He leaned a shoulder against the doorframe, not saying a word.
You didn’t hear him approach until it was too late.
Strong arms slid around your waist from behind, and a warm chest pressed against your back. You yelped softly, giggling in surprise.
“Happy Birthday to—AH!” you squeaked, twisting in his arms. “You scared the hell outta me, Severide.”
He laughed, low and gravelly, dipping his head to press a kiss just below your ear. “You didn’t hear me come in. You were too busy being cute.”
“I was cooking,” you corrected, but your breath hitched anyway when his hands stayed firmly on your waist, thumbs brushing lazy circles over your T-shirt.
“And wearing my Squad 3 shirt while you do it?” His voice dipped. “That’s not even fair, babe.”
You squirmed a little, which only made him grin more. When you tried to duck your head, he gently tilted your chin back up.
“Don’t hide,” he whispered. “I wanna see that blush.”
“Kelly,” you groaned through a smile, your cheeks burning.
“What?” he asked, feigning innocence. “You look hot. And it’s my birthday, which means I get to be shameless.”
“Oh, you’re always shameless,” you teased.
He chuckled, leaning in closer, now completely boxing you in against the kitchen island.
“Well,” he said, dragging out the word. “I wasn’t planning on having my pudding before my main course… but I’m starting to reconsider.”
Your entire body flushed.
He smirked. “You should’ve put on pants, babe. Rookie mistake.”
You tried to swat at him, but he caught your wrist mid-air and kissed it instead. Your heart was thudding wildly now — both from the teasing and the way he was looking at you like he hadn’t seen you in weeks.
His fingers slid just under the hem of his shirt where it touched your thigh, thumbs caressing slow, soothing lines.
“I love coming home to you,” he said softly, the teasing briefly melting into something deeper. “You, in my shirt. Cooking me dinner. Socks and all.”
“You’re lucky I love you,” you whispered.
He kissed the side of your neck again, his voice still playful. “I am lucky. Especially if I get to eat both dinner and dessert tonight.”
You gave him a mock-stern look. “Main meal first.”
He pouted. “Even on my birthday?”
“Especially on your birthday,” you said, turning back to the pizza tray. “Otherwise you’ll be too smug to eat and I’ve worked way too hard on this dough.”
Kelly groaned dramatically but let you go — only after giving your hip a final squeeze and kissing your cheek one last time.
While you finished assembling the pizza, he got plates and cracked open two beers. You sat across from him at the kitchen island, legs tangled under the stools, sipping, laughing, and eating too much cheese as it melted onto the crust.
Movie night started with Die Hard, then shifted to cuddles under the blanket, your head on his chest and his fingers trailing lazy lines up and down your back.
Eventually, he leaned in and whispered, “Still thinking about dessert…”
You laughed, lightly swatting him again. “You’re insatiable.”
He grinned. “I’m in love. What do you expect?”
The pizza box got pushed to the coffee table.
The blanket slipped a little lower.
And somewhere between kisses and giggles and whispered “I love yous,” the rest of the night faded to black.
The next morning, you woke up to Kelly already up and making coffee — wearing nothing but boxers and a sleepy grin.
He set a cup down beside you on the counter, leaned in, and murmured, “Best birthday ever.”
You just smiled, still wearing his Squad 3 shirt.
You’d be wearing it again tomorrow, too.
Hey sweetheart! I really hope you enjoy this and it’s what you imagined out of your request. I hope I did it justice!
