Yui sighed as she blew out the candles on her cake. She tried to smile, tried to make it look like she was having a good time. And she was, kind of. Her grades had been the best they’d ever been (and they’d always been good), her brilliant family and friends were all here celebrating with her, she felt loved and supported and like her life was perfect…except, there was that one thing.

She looked over at Jessa, whose curvy, swollen breasts poured out over the lip of her vest top, the top that looked like she’d bought it years ago while her boobs were small, and had grown way too big for it. Except Yui knew she’d bought it last week, and Jessa just had amazing, beautiful breasts. Jessa tucked her long, blonde hair behind her ears, her blue eyes sparkling. She adjusted her vest, trying to hide some of the mass of boob that swelled up, seemingly trying to climb out for all to see.

Yui tried not to think about it. She felt so ungrateful. She had the kind of life most people could only dream of, it’s just that she would have traded most of it for…no, it didn’t bear thinking about. She was lucky. Look at her: surrounded by friends, health and happy. She had nothing to complain about. It was just…she was 18 now, and she thought she’d be a little bit…bigger.

Yui cursed herself and her stupid brain as the smoke from the blown out candles drifted lazily up into the air. Yui had made a silent birthday wish, and she was ashamed of it. Well. It’s not like it would come true, anyway. She plastered a smile across her face and looked up at pretty redhead Andi, another of her chesty friends. Why did all her friends have to have such great boobs? Yui should have hung around some flat-chested people; it would take her mind off just how inadequate she felt. The crazy thing was, it wasn’t even to get boys to like her – Yui was very pretty, and had plenty of interest from men. It was for her. She found breasts endlessly fascinating, and she had long hoped that her slim, svelte figure would blossom into a busty, curvy, voluptuous shape by the time she was 18. That was the cut-off she’d given her body to grow her some tits.

And now it was here, and she was the same old flat-chested woman she’d always been. She caught Mary and Marnie looking over at her, concern on their faces. These two dark-haired beauties had been in a relationship for a long time, but had recently made it public. Their families were surprisingly accepting, and Yui felt a pang of jealousy as they leaned into one another, their large boobs pressing gently together, forming a mini-cleavage as they stood there, looking down at their slim friend. Yui knew they had no idea how much she longed for tits, but it still hurt.

Then there was Simone. Simone’s tremendous, J-cup boobs remained stuffed into her tight, white t-shirt, but the warped lettering across the front gave away their sheer size and bulk. Every time she breathed in, Yui found herself staring at the way her boobs seemingly swelled with air as her lungs inflated, the rippling of the fabric stretching forward as Simone’s monstrous jugs groaned outwards. Yui almost blushed as she looked, before turning away.

“Happy birthday, Yuiiiiiii!” The group called out together, her mom and dad looking proudly down at their daughter as the warm group of family and friends celebrated together.

Yui put on her best fake smile as her friends surrounded her, leaning in for a group hug. Yui immediately found herself surrounded by breasts, fat tits bulging into her shoulders, smothering her face from all angles, as her five best friends gave her a group hug. She was glad no one could see how miserable she looked, as huge breasts filled her vision and she tried to think of anything else.

**

At school on Monday, Yui tried to suck it up, tried to pretend nothing was wrong, but as she had lunch with Jessa, her blonde, busty friend could see that something was wrong. Folding her large, fulsome breasts under one arm, she poked a fork in Yui’s direction over mac and cheese in the canteen.

“What’s wrong?” She asked, passing Yui a drink and staring deep into her eyes.

“Oh, nothing.” Smiled Yui, tucking her dark hair behind her ears, and taking a sip. “Just feeling old.”

“Old?! You’re 18 for crying out loud!” Jessa laughed, taking a bite of mac and cheese and grinning as she ate.

Yui looked down, her eyes resting briefly on Jessa’s large, prominent chest, which she’d dribbled a little bit of cheese onto. It was slowly running down into the generous line of cleavage that made up most of her chest.

Jessa rolled her eyes. She was used to people staring.

“Well, you did just have a birthday. Did you make a wish?”

Yui couldn’t help but smile. Her friends knew her well.

**

Tuesday she lunched with Andi, who had her red hair down and flowing, and was looking particularly gorgeous, her tits strapped into a tight, green tee. Her bra looked like it was straining to contain her puppies. Yui’s eyes flicked down during their conversation.

“Jessa said you were feeling bummed.” Andi asked with concern, pouring them both some water.

“It’s nothing.” Yui replied, trying to smile. Andi raised a suspicious eyebrow.

“Yeah, right.” She grinned. “Well you know you can talk to me, right?”

Yui nodded. She knew that. But she knew they wouldn’t understand. She changed the subject onto some film they’d both seen. Seeing the concern in her friends’ eyes only made it worse.

**

She ended up having lunch with the whole group separately that week: Wednesday was Mary, Thursday Marnie, and then on Friday with the queen of them all: the huge-boobed Simone. That was particularly painful for Yui, who’s never felt smaller. Each time they asked if she was ok, and each time she lied that she was fine. It was all she could do. It wasn’t like there was anything they could do to help.

Yui went home that weekend feeling exhausted, and looking forward to doing a whole lot of nothing. On Friday night, she went to bed nice and early, and immediately fell asleep.

And as her mind slowly calmed, and her body sank into the bed, Yui started to dream. She had no idea how or why, but in her dreams, she felt a tingling, powerful sensation throughout her body, and all the fragmented images that remained in her mind were of her with huge, monstrously large breasts…

**

Yui barely remembered anything that morning when she awoke, yet her mind held onto the residual feeling of that sense of power, and growth. She opened her eyes, rubbed the sleep out of them, and looked down, hoping against hope that her birthday wish had come true, and that she’d see a pair of whopping great boobs bulging out from her pajamas. Alas, nothing. The buttons lay across her flat chest, unstretched.

Yui walked to her closet, and decided today she’d wear a bra. She didn’t really need to, so often didn’t bother putting one on, but there were a few padded ones she’d worn in the past which made her look like she had at least some semblance of boobage, so she slipped one of those on, and made to clasp it up.

It took a few goes to get the hooks to do up, and as Yui looked down at her boobs, she had to say they looked pretty great – she was quite surprised at how well the padding worked – she looked like she had a cheeky little pair of B-cups. It was certainly the biggest she’d ever looked, and that was something.

She slipped on a t-shirt, admiring the ever-so-slight curve of her chest, and headed down for breakfast.

Yui was hungrier than usual, so put away a couple of pancakes before getting in the car and heading out to the mall. She’d arranged to meet the whole gang there, and picked up Jessa and Simone en route. Yui looked at Simone’s chest as the safely belt slid between her huge mounds, and felt green with envy. Any swell of confidence she’d felt looking at her little bumps this morning was immediately deflated by the sheer size of her friend’s tits. She tried to hide it, but Simone could tell, and asked her what was wrong.

Yui was getting tired of lying, but she didn’t want to upset her friend. She was sure this was a phase, and she would accept her petite boobs soon enough. She did notice both Simone and Jessa checked out her chest when they thought she wasn’t looking though, and that felt nice. At least she looked bigger!

Yui spent a really fun day at the mall with her friends, grabbing coffees, going shopping, catching a film and hanging out back while Marnie had a cigarette. Mary couldn’t stand that she smoked – it was the one thing they argued about – but it was a beautiful day, and there was a park nearby, so they all decided to decamp out there, grab some smoothies, and enjoy the afternoon sun.

Yui had been absent-mindedly adjusting her bra all day, and eventually Simone commented on it, asking what was going on. Yui hadn’t even noticed, and said as much.

“Your boobs are looking great today, by the way.” Smiled Simone, lying on her back, her own giant tits jutting up towards the sky like small mountains. Yui was lying next to her, trying to make sure she caught the sun before it disappeared behind the enormity of Simone’s jugs.

“Aw, thanks. I wore a padded bra.” Yui confessed, looking down at her own chest, which did indeed look pretty good from this angle. Almost like she had tits.

“Must be a lot of padding – they look bangin’.” Jessa chipped in, from the other side, turning onto her side, her breasts spilling out across the grass.

Yui took a deep breath and felt her t-shirt slide across her belly as she did so, exposing the soft skin to the afternoon sun. That was strange. It hadn’t done that before. She pulled at the base of the tee to bring it back down, and it moved, with some complaining. As soon as she let go, the shirt moved slowly back up, as if to a default position.

“Yeah, I’ve been meaning to say for a while, your tits look great.” Smiled Marnie, lighting up again and sitting in front of the three girls. She blew the smoke over her shoulder where it drifted through the branches of a nearby tree. “You’ll be catching me up soon.”

Yui blushed at the thought, and felt the warm glow of friendship flood through her body. They knew – her friends knew she was struggling with this, and they were trying to help. That, and the fact that she did actually feel like her tits looked pretty good today, really touched her. Also her bra felt legit tight, and that was a rare and strange feeling. She’d been eating a lot, so it was possible she was just a bit bloated, but it was fun to dream.

Marnie’s comment made Yui think of the boob hierarchy her friends enjoyed. Obviously at the top it was Simone, whose tremendous tits defined the term “large” for Yui. It always had. Then came Jessa, who had a very impressive pair of boobs, perky and beautiful to look at, but just not in the same league as Simone. Then Marnie and Mary, whose large breasts were roughly equal, and Andi bringing up the rear.

Well, apart from Yui. She groaned inwardly at the realisation that she hadn’t even put herself on the list. That was how small her tits were. Still, today she was feeling big, and she was going to hold onto that feeling as long as she could.

Yui lay there in the sun for what felt like both many hours and a few short minutes all at the same time, feeling the warmth soak into her bones, until she realised she was hungry and suggested they all go and get pizza. She hauled herself to her feet, feeling heavy and sleepy and hungry all at once. She pulled at her t-shirt, but her belly was still on display. It was weird, maybe her tee was too small. Her stomach seemed as flat and toned as ever, and she’d always been able to eat as much food as she wanted without putting on weight, so it couldn’t have been that. She looked down at her tits, which were actually looking pretty good, and adjusted her bra again. The padding really felt substantial. It was nice. She didn’t feel busty, but she felt the closest she’d been to that in a long time.

They piled into a couple of cars and went to get pizza, music blaring as the sun sank over the horizon and dusk began.

**

By the time Yui got home, she was completely stuffed. So much food, a milkshake, even an ice cream sundae for dessert. She felt great – tired, happy and loved, and even her uncomfortable bra wasn’t going to get her down.

She got out of her car after dropping off Simone and Jessa and headed inside. The house was quiet – her folks must have already gone to bed. Yui put on her slippers, padded into the kitchen and downed a can of coke, the thick, sticky liquid dribbling a little down her chin. She wiped her mouth, and headed upstairs to her room.

Ok, so she hadn’t got her wish, and her life wasn’t perfect, but as far as things went, everything was pretty great, and she didn’t really have anything to complain about – except her bra was really tight and it was annoying her.

Yui’s train of thought was interrupted as she entered her room, and the bra digging into her back cut through her thinking. She hadn’t noticed until now, but it really was tight, and it was pissing her off. Arching her back, Yui walked across the carpet of her room and fumbled with the clasp on her bra.

As she reached the mirror on her closet, she gasped for a moment just as the clasps came undone, and her bra pinged off. She rubbed her back, feeling the red dents where it had pressed into her skin. Yui looked at her body in the mirror. There was no way, even in the dim light of the room that this made sense. Her boobs were…well, boobs. Proper, decent boobs! The padded bra cups hung over the tits, adding a little size, but even with that, her tits actually had a little curve to them. Sure, they weren’t even remotely what you would describe as big, but Yui would take what she could get. She looked at the small, B or C-cup handfuls on her chest, and pulled the bra slowly off them, mesmerised by their size. Her t-shirt rested over them, pulling up over her stomach due to their mass. She touched them, gingerly. They felt tight and swollen. And real.

Yui slowly removed her t-shirt, and admired her breasts in the moonlight. They looked fabulous – perky and bouncy. She even jumped up and down a couple of times on the carpet, and they shook and wobbled as she did so. It was such a pleasing sight she could barely contain herself. Her wish had come true!

And even if this was the only growing she could ever expect, it was enough. Yui slipped into her PJs, which were now a little tight over the chest, and fell into bed, deliriously happy. She fell asleep almost immediately, her new chest rising up and down in the twilight.

To BE continued…