"You've got to be kidding..." They were the first words out of Lizzie's mouth this morning. Struggling to clasp her bra, one that she'd been sized for less than a month ago, she finally resigned to loosening the straps in a mental admission of her continued growth. "I just got this like last week!" It was an exaggeration, but not by much. And more importantly, it was the continuation of a trend that she wasn't tremendously happy about.

Four cup sizes in less than a year. That's how much Lizzie's tender, 20 year old breasts had grown. And much to her dismay, this would mark the fifth. Only a year ago she'd wished to have a bigger breasts, but she would have been happy with a perky C cup.

Standing in the mirror she watched herself throw her blond hair back over her shoulders with her eyes glued to her chest. She looked ridiculous. She'd noticed her bra getting tight again only a few days ago and new she was nearing another growth spurt, but she'd hoped it would at least take its time... But Lizzie would have no such luck today. She was convinced the titty fairy must have spilled her entire bag of boobie dust on her some time in the last year, and her swollen breasts seemed to be determined to ruin her entire wardrobe of clothes.

She couldn't do anything but stare at her reflection, wondering why this was happening to her. Her blue DD cup bra was clearly struggling with the heavy flesh spilling from the top of its cups, squeezing her breasts into a mound of firm cleavage. "I guess I'm wearing a sweater again..." She said, resigning to her unbelievable condition.

As she pulled her Colorado State hoodie over her head, she realized even that was only concealing so much... The green sweatshirt was gently draped over her swollen breasts, billowing out over her midsection, just covering the waistline of her black leggings. It wasn't quite tight, but it was far less roomie than it once was.

Aside from her outrageous chest, Lizzie was actually quite proud of the rest of her body. She had kept her 5'5" body relatively fit. She wasn't a gym freak by any stretch of the imagination, but she maintained what she thought was a healthy weight, with a soft and mostly flat belly, only displaying the slightest bump during a certain time of the month that invariably had her a bit bloated. Her hips and thighs were muscled with a soft layer of fat evenly covering every inch. Enough to give them a uniform smoothness, but not so much that any reasonable person would call her overweight. If not for her abnormally proportioned chest, she would have absolutely no complaints about her body.

Lizzie did her best to ignore the constant pressure from her now to tight bra as she made her morning coffee and breakfast. Equal parts eager and anxious for her doctors visit today. She couldn't tell if she was so keenly aware of her breasts this morning because of the pressure of her bra, knowing she'd be explaining her 'symotoms' to a doctor, or because they'd been growing increasingly more sensitive as they'd expanded. She hated to admit it to herself, but she couldn't deny how good it had started feeling to give her tender breasts a firm massage...

She toyed with the remaining scrambled eggs on her plate, pushing them around with a piece of toast as her mind wandered. How was she going to explain this to a doctor she hadn't met yet? How much bigger could they really get? Why where they so god damn sensitive?? Before she knew it, she'd wasted the time she'd set aside for breakfast asking herself questions she had no answers to, and she quickly cleaned up, tossing the remaining eggs in the bin and bringing the half eaten toast with her on her way to the car.

"God, seriously??" She exclaimed, realizing that her breasts were quite literally in the way of her arms as she gripped the steering wheel with both hands. "Nothing can be easy with these things..." She said and she released one hand from the wheel to provide more room to her ample chest. "I swear..." She trailed off, not really having a thought to follow up the statement beyond incomprehensible frustration with the heavy, swollen breasts that seem to be getting in the way more and more.

Her drive was quiet. Her mind to busy to even bother putting in any music. And 20 short minutes later, she had pulled in to the parking lot at the doctor's office. Auto pilot had taken over, and thank goodness the other drivers on the road hadn't done anything unexpected. Her mind was far more focused on her developing condition than it was evading an accident...

"Hi, I'm Lizzie Hawthorne. I'm here to see Dr. Burkmeyer?" It wasn't a question, but she'd said it as if it was. Almost hoping that the receptionist would tell her she was mistaken and that she could just go home and deal with this another day.

"Good morning, Lizzie!" The kind smiled woman responded. "I'll let the doctor know you've arrived. If you would please have a seat and fill out these forms, you'll be called back as soon as he's ready."

"Thank you!" Lizzie said smiling back at the woman, taking the clipboard from her and turning away from the desk. She scanned the waiting room for a secluded seat where she could fill the insurance forms out in peace, quickly identifying a pair of seats next to a tall monstera plant. Surely nobody would try to sit directly next to her, and it was about as fat from any other patrons as any other seat.

She sat and quickly started filling in the forms. As she did, she felt something odd. That sixth sense that you're being observed was ringing quiet alarm bells, but she did her best to ignore it as she continued to scribble down her information. Finally as she finished the first page, she glanced up and met eyes with a man seated across the room who quickly averted his gaze. He was older than her but not by much, maybe 25. And she was sure he'd been staring, no doubt trying to discern the figure hiding beneath her green hoodie...

It had been happening more and more. Maybe it was because she was embarrassed by her frame, but she was fairly certain men had been eyeing her more frequently, and honestly, more openly sometimes too. She might even find it flattering if it wasn't for the fact that it was her huge, cumbersome breasts that were gathering all the attention...

She shook away the though and continued on the next page. This one asking for details regarding her visit today. Lizzie immediately blushed, realizing that this was the first moment she would have to admit to her symptoms... Sure, it was to a piece of paper, but somehow she felt like that paper was already judging her for her massive breasts...

Reason for visit:

She could have filled that field easily before this moment. Before knowing that the doctor, and potentially other staff would see what she's written down. Her heart beat faster in her chest as she worried about what to write down. The blush on her face could probably be seen from a mile away... 'Abnormal brea-' she started to write, quickly scribbling it out, ashamed to let anyone see what she was about to write down... 'Unusual physical developments' is what she eventually came to. Certain that it would be an unsatisfactory answer, but unable to bring herself to offer any more detail than that.

"Lizzie?" The nurse called out as she opened a door from behind the receptionists desk.

"Right here!" She called back, standing up and quickly making her way towards the door, avoiding looking to either side for fear of catching another pair of ogling eyes...

"We'll have you in room 3" the nurse said as she ushered Lizzie through the door, guiding her towards the exam room labeled '3'. "Dr. Burkmeyer will be in shortly. In the meantime I'm just gonna get some vitals on you and check your height and weight." She said as she opened Lizzie's medical chart.

It was a brief process, but somewhat alarming to Lizzie. Her vitals were fine, and her height was as expected. But she'd gained nearly 8 pounds... 148 was the heaviest she'd ever weighed, and she knew exactly where most of that had ended up... It left her more embarrassed than she was when she's come in, waiting anxiously until there was finally a knock at the door.

"Knock knock" Dr. Burkmeyer announced as he cracked the door open, echoing the knocking he'd done with his knuckles a moment before. "Hi there! I'm Dr. Burkmeyer!" He said, smiling as he entered the room.

"Hello, I'm Lizzie." She responded with a shy smile, trying to hide her obvious embarrassment.

He was already flipping through her chart as he sat on the stool and wheeled himself closer to Lizzie. "So, really good vitals, nothing alarming in your chart. And you said you were visiting for..." He paused scanning her chart for more details. Lizzie elected to wait for him to finish his sentence instead of filling him in. "Ah, unusual physical development." His eyes left the chart to meet hers, an inquisitive eye brow slightly raised, hinting at the expectation of more details than she'd given. "What kind of developments have you been experiencing Lizzie?" He asked.

The weight of the question hit her like a ton of bricks. She knew she couldn't avoid answering at this point... "Well..." She started, suddenly more aware than ever of the pressure her breasts were still feeling stuffed in her DD bra. "My breasts have been growing kinda quickly." She managed to get out relieved and terrified at the same time.

"Okay." He nodded, validating her concerns with a very professional tone. "Well breast growth isn't terribly uncommon for women to experience at your age. A little quick though? Tell me a bit more about that. You're here in my office stating it's unusual, so I'm sure you're concerned about how it's affecting you."

She was hoping he'd just keep talking so she'd never have to answer... "Well... Yeah, it's just kinda been... More than it should be I think... Like, faster..." Again, she hoped he would carry the discussion more but he left the room silent, waiting for her to continue. "It started about a year ago. I was quite a bit smaller... And I guess they just kinda get really tender for a week or so, and then it feels like they grow over night." Somehow his silence and calm expression was making her more comfortable than she expected. "Like, they'll go a few weeks or even months sometimes and I'll think it's stopped, but then they'll get really tender and sensitive and my bras start feeling tight..."

After another pause he did interject "Does it happen consistently with your cycle? It's not uncommon at all for a woman to experience swelling and tenderness during her period."

"No." She surprised herself with how quickly she jumped into responding, "No it's more than that... And they're not just swollen, they're definitely growing... They've gotten a lot bigger in just a year."

"How much would you say they've grown? Like I said, breast growth at your age isn't terribly unusual." The doctor maintained his calm demeanor, showing no signs of surprise or judgment.

"Well... I was an A cup a year ago..." She almost didn't believe it herself as she said it. And for the first time, Dr. Burkmeyer showed a hint of alarm on his face.

"Okay, well your breasts are certainly a bit bigger than that now." He said, addressing the elephant in the room directly but professionally. "I wouldn't say it's absolutely concerning, but you're right to come in and make sure there isn't something going on we should know about." He sat up a little straighter, his 6'2" frame bringing him eye to eye with Lizzie despite her being seated in a table quite a bit higher than his stool. "Would you mind if I did a breast exam?"

Her eyes darted up to his. If she wasn't already blushing she certainly was now... "A breast exam?" She asked quietly, knowing full well it would have come to this before she stepped foot in his office.

"Don't worry, I'm just going to check for lumps and anything unusual." He was clearly practiced. He knew just what tone to use to illustrate confidence and professionalism, and Lizzie found herself somehow comforted by the gentle man's voice.

"Okay... Should I take this off?" She asked, gripping the bottom of her hoodie.

"If that's okay. We'll get you dressed again in no time. It'll just be a quick couple minutes." He responded, the same reassuring tone in his voice.

Lizzie stood up and pulled her hoodie up from the bottom, exposing her soft midsection quickly, but struggling slightly to work the sweat shirt over her breasts. As it cleared her head and she was able to see again, she immediately noticed his eyes in her chest. Not ogling, just observing. She quickly worked to remove the bra constricting her swollen breasts, the relief of freeing them from the under-sized cups almost outweighing the embarrassment of being completely exposed.She stood in front of the doctor, her arms crossed, covering her quickly stiffening nipples. Knowing that he'd need her to remove them to continue.

He rolled his stool closer, and she instinctively moved her arms out of his way, not a word spoken between them as he began his exam. The doctor was gentle, softly kneading through the flesh of her breasts. Feeling around for any abnormalities as he conducted what Lizzie could only describe as a medical massage... It felt good... Embarrassingly good... She'd never felt a man's hands on her breasts, and it was affecting her more than she would have ever admitted.

She sharply inhaled as his fingers first brushed against her nipples. They'd grown as well. The areola widening to the size of a half dollar coin, and the nipple itself protruding nearly half an inch. They were light pink, and slightly puffy. But more than anything, they were incredibly sensitive. It was all she could do to stifle a whimper.

"Have they gotten more sensitive?" She wondered if he was reading her mind...

"A lot..." It came out as barely more than a whisper. "Especially when they're growing."

He glanced up to meet her eyes, "Do you feel like they're going through a growth spurt currently?" He asked, looking back down to continue his examination, now pressing more firmly as he proved deeper into her swollen flesh.

"Um... Yeah... I woke up this morning and they felt really swollen..." She said, soft gasps escaping her lips as she spoke.

He continued for what felt like an eternity, but realistically was likely less than another minute. "Okay." He pulled his hands away, rolling his stool back about half a foot or so. "You can go ahead and put your sweatshirt back on. I wouldn't recommend putting that bra back in though. It's your choice, but constricting your breasts like that might contribute to the tenderness." He turned to grab Lizzie's chart and began flipping though it once more, announcing his intentions next. "I'd like to do some blood work. There's nothing alarming about your breast tissue. No lumps, nothing indicating anything synester or nefarious from a physical exam. But we might get to the bottom of this if we can get a hormone profile."

He didn't look up as she slipped her hoodie back on, taking his advice and leaving the bra off. It did feel much better, but she also felt quite exposed not wearing it... "Okay. Will that give us any idea what's going on?" She asked, her shy demeanor fading as the hope of discovering what was behind this started to encourage her.

"It could. I'm optimistic." He said finally looking up from her chart and smiling. "I'm going to send the nurse back in to do a quick blood draw, nothing crazy, just a little poke and a small sample, and we'll get it sent off to the lab to analyze it and hopefully have some answers for you by tomorrow afternoon."

He haven't guaranteed a thing, but it was the most relief she's felt about her breasts in months. "Okay, sounds great!" She said, a very genuine smile spreading across her beautiful face. "So, do I need to come back tomorrow, or..." She trailed off.

"Oh no, no need to make the drive unless we find something really alarming. Just expect a call in the afternoon and we'll schedule a follow up if it's necessary." He slapped his hands on his thighs, indicating his intention to stand up to leave the room. "Do you have any questions for me before I send the nurse back in?"

"Um... Well, do you think it's something wrong with my hormones?" She asked, realizing that she still hadn't actually had any questions answered.

"Well, I have a strong suspicion." He said, slightly settling back into his stool. "If I had to guess, and this is very much a guess at this point, you've had a hormonal shift in the last year. It could be a well documented condition, or it could be something unusual but benign." He was very good at avoiding making this sound too alarming. "The good news is you're a very healthy young woman, and at this point I'm not seeing any reason to be concerned by anything other than getting yourself a new set of bras."

His smile was a comforting one, and she knew the comment was more of a matter of reassurance than anything. It felt good to hear it somehow. And for the first time in months, Lizzie felt some peace. "Okay." She said, a small smile on her face. "Thanks doctor." She said, as he stood up to leave.

"You're very welcome, Lizzie." He said as he opened the door. "A nurse will be right in to get that close test, and you can get back to the rest of your day! It was lovely meeting you! I'll call tomorrow!" He waved goodbye as before closing the door behind him.

Lizzie sat for a few moments, relieving the experience she'd just had. Her mind taking her back to feeling the doctors hands on her swollen breasts... She couldn't believe how good it felt to have someone else touching them... Massaging them... She knew that's not what he was doing, but it sure as hell felt like a massage. And she's be lying if she said she wasn't getting a little excited thinking about it...

A knock on the door bright her back to reality and she realized her own hands had been softly massaging her breasts through her hoodie. She quickly recoiled them as the door opened and the nurse walked in.

"Hello!" She said as she entered. "Dr. Burkmeyer has ordered a blood draw. I've just gotta give you a little poke on the dinner and we'll get you out of here!"

Lizzie was only slightly distracted from her lusty daydreaming for the remainder of her visit. Half way between contributing to the small talk the nurse made with her and imagining a pair of strong hands kneading her swollen breasts. It wasn't long before she was back in her car, driving speeding home, eager to crawl into bed and continue with what she knew was doing to turn into a wildly inappropriate fantasy involving her very professional doctor...

She spent most of the remainder of the day, gently teasing her aching nipples. Toying with them as she felt her arousal build. It felt so naughty, but she couldn't stop herself. Squeezing her legs, rubbing her thighs together as she groped the same massive breasts that she was so ashamed of only hours before. Arousal had taken over, and at least for now, she was absolutely enthralled by her own breasts.

Hours of teasing and edging later, she found herself in bed, as turned on as she'd ever been. The Shane of her enormous tits melting away as her moans grew louder and more uncontrolled. She felt it building. She knew it was going to happen, and she wasn't going to be able to stop herself. Her huge, embarrassing, sensitive boobs were about to drive her into the most powerful orgasms she'd ever had... And she wanted nothing more in that moment.

What started as a warm tingle zipping from her nipples to her clit turned into wave after wave of pleasure crashing through her body. Her hands instinctively gripped her breasts as her hips bucked and her legs clamped together. The moan she let out was unlike anything that had ever escaped her lips. Like it was all she could do to release the torrent of pleasure overwhelming her. After what felt like an eternity, her body finally released her from its involuntary squirms and spasms, and she was left lying there, desperately trying to to catch her breath.

Lizzie didn't remember falling asleep, but when she woke up, a feeling of absolute guilt and shame washed over her. She'd let herself give in entirely to the one thing about herself that she wished she could change… She felt dirty. She felt wrong. And she still felt so so horny…

She spend the morning trying to distract herself. Pulling herself away from those thoughts as best she could, but she was failing at every turn. Something had woken inside of her. And it demanded attention. There was no ignoring the mighty need that she'd cultivated in only one night of self pleasure. She knew right then that she'd never be able to experience pleasure like that again without giving in to the demands of her swollen, growing tits. And it terrified her how badly she already wanted to do it again…

She'd almost forgotten that she was expecting a call from the doctor when her cell phone started to ring. “Shit… shit shit shit” she began to panic. Somehow afraid that the doctor knew what she'd done… nervous that he would scold her and shame her for being such a naughty girl… her hands shook as she answered the call. “Hello?”

“Hi Lizzie! It's Dr. Burkmeyer! We just got you lab results and I think I've got some answers for you!”