One rainy day, Lara walked into Jose's Store of Wonders.  They had a BE section.  She had heard of many "accidents" with BE products but after a long thought process, she determined that she needed it.  Lara was totally flat, not even an A cup.  She needed boobs, real ones, for herself, her boyfriend and her future children.

She had not, however, decided which product to buy.  She spent over 2 hours browsing the BE section, pulling down this product and that one to look at.  Most were too strong for her tastes.  Others never stopped, causing BE through semon rather than taking more drops.  Lara complained, "Can't I just buy a few drops.  The labels say that's all I need.  Why are the bottles so big?"  The store owner had to make money some how.  All she wanted was a B cup, maybe a C.  She wanted... enough.  Getting frustrated, the shoulder-height girl reached for some bottles on the top shelf.  She slipped, dropped them, and held onto the top shelf as she attempted to catch them.  The entire stack of shelves, full of glass bottles, came crashing down on here.  The store owner believed in liquid products only, in order to get the cheapest form.

Jose, the owner, came running at the sound.  He saw an innocent-looking little girl covered in various brightly colored liquids: hot pink, yellow, neon green, sky blue - every popular selling color you could imagine.  He froze.

"Now hold on lady... just walk to the back and we can work this out quietly."

The poor girl struggled to crawl across the slippery floor, her boobs sliding through the swirl of liquids.  Lara had been near "the back" when she used the bathroom earlier.  It was a dark alley where she bet Jose would "silence" the whole crisis very quickly with a .22.

Jose began waving his hands in all directions as he tried not to raise his voice.
"No, no, don't move.  I'll help you up.  You're getting it all over you. [more quietly]  Oh no, the city's doomed."

Lara reached a bright blue liquid which, upon contact, caused all the other liquids to be sucked into her boobs.  Oddly enough they only swelled one cup size to an A cup.  Lara took advantage of the dry floor to get up and run out the store, remembering to grab the BE product catalog before leaving.

Now, Lara was a very bright girl and a scientest.  She drove her car straight to her lab to examine the catalog.  The liquids fell into several categories.  Many worked by causing the body to produce hormones, or through other natural processes fueled by food, to make boobs grow or increase milk production or to make her more feminine.  Lara filled a bottle with hormonal inhibitors to take with her.  "I can't stop eating but I can stop the hormones."  Others absorbed materials to make boobs grow.  "Of course. I absorbed all those concoctions because this one makes me absorb water to grow," she muttered.  "Good thing they're all over 90% alcohol, or I'd really be big".  Other absorbed materials would cause her boobs to grow an amount several times greater than the amount absorbed: milk, cream, semon, melon juice.  Other effects grew her with a trigger: her sexual pleasure, a man get sexual pleasure from her, electricity, simple massaging, affectionate language, staring at her with sexual desire.  Then there were genetic effects.  Yep, she's a mutant.  Pumpkin genes ("Warning: abstain from milk to avoid excessive growth.  Do not use to increase the size of already large breasts, especially if lactating"), watermelon genes for growth in sunlight, pig genes.  "Huh?  Oh, pigs have 30 minute orgasms.  This one isn't even BE."  Genes from affectionate love birds.  Many had other side effects: one made her milk cause penus growth; fortunately none of them allowed growth beyond 12 inches.  Others let the man make more semon from drinking her milk, or some even if his dick touched her boobs.  Both could also make him stronger, depending on her size.  Unfortunately those had no built-in limit.  And the larger her boobs grew the more sensitive they would become to sexual pleasure.  With her dose, a flea on a C cup would make her smile and laugh.

Well prepared, she drove home through the rain.  Her husband was waiting at the door with a bunch of flowers.  She felt her new boobs tingle.  "Uh oh, affection."  She ran to her door to keep from getting wet, unlocked the door and ushered her husband inside.  He began to speak.

"I got these for..."
"Shh, not a word.  I have something to tell you."

They sat together on a couch where she explained the whole thing to him.

"Well, it'll be hard not being able to express our feeling to eachother.  Or do you know what.  But you mean more to me than any amount of upper-body flesh.  You can count on me to help you through this."

Aww, it was so nice to have a caring husband that didn't *want* her boobs to grow (well, not if it was a strain on her back), unlike all the other stories she heard.  Suddenly her chest thrust forward and sent her into the opposite wall.  She had instantly popped into a B cup, her now visible mounds of model-flesh well visible through her small shirt.

"Sorry, " he said.  "I'll try not to express my you-know-what."

She knew what, and felt her bra tightened ever so slightly.  She noted that he hadn't given her any indecent looks, since her super-overdose would have made the slightest attempt very apparent.  "Awww. (looking down quickly) Phew, nothing."

Her husband determined to stay with her, to make sure she wouldn't slip up.  She relaxed a bit and they had dinner.  She reached for a bottle of milk, took the cap off, and was about to pour when her husband stopped her.  As the two nodded and smiled, she spilt the jug, narrowly dodging the splash.  She and her husband cleaned out her fridge.  This went on for several days.  It was hard, having to wear dark clothing to keep the sun out, not being able to shower and especially not being able to get intimate with her husband.  One day, at noon, on a bright sunny day, the two buckled.

"How bad would it be if we did it," she said.
"You tell me.  Didn't you find out?"
"Well, if you ejaculate inside of me and not on my boobs, nothing will happen.  And if you don't rub my boobs..."
"So it's doable?"
"Ya!"
"Have you been taking your anti-hormone pills"
"Not for 3 days, and I'm still a B or B-and-a-half.  How bad could this be?"

Come to think of it, he notice a sweet, melodius girl tone in her voice.  They went for it.

"Hold on, " she said, "Let me empty myself."

She had been lactating gallons a day since she stopped the pills.  The only noticeable effect.  She knew to keep her boobs empty to prevent growth.  She kept the milk in a plastic tank in the kitchen.  Lately her husband had practically lived off the stuff.  Hundreds and hundreds of gallons of the stuff...

She walked into their bedroom wearing her regular clothes (no staring, remember?).  Nevertheless, his pants immediately bulged; then the button popped off of them from a foot long erection.

"Oh, I forgot.  You've been drinking my milk.  Oh well, *that* effect is pretty nice.  And if I come out of this with a B or C, or even a D at most, I'll be much happier than when we started.  Just remind me to empty myself again and take my pills when we finish before we go to sleep.  I'm already a B-and-a-half from the milk."  Without thinking, she rubbed her now-itching boobs, then loosened her strap.  Laughing at herself, she threw the whole bra off.

He closed the blinds out of habit.  This was one of many measures he took to make sure the store owner Jose wouldn't find them.  But little did they know how frantically he was searching.

He barely fit in her small body, and they went to it.  She felt her boobs steadily expanded from the pleasure and stayed erect from the pressure of being inflated, as if she was getting her own erection in the chest.  She just remembered that one.  Oh well hopefully they wouldn't get *too* large.

Then her husband saw them grow and from that point on both he and Lara ran on adrenaline.  His eyes opened wide at what were obviously supermodel size on a less-than-supermodel-tall girl.  He wanted to point them out but found that the excitement was going to soon end the experience early anyway.  Surprisingly he lasted another 2 minutes and she erupted first.  Simultaneously she gained 3 cup sizes, both boobs now the size of her head.  She opened her passion-shut eyes and felt a mix of excitement and shock at the site.  He ejaculated immediately.  She couldn't hold very much, and the semon began to spray out through the sides all over her.  And wouldn't stop.  It kept coming faster and faster - the other effect of the milk that they both forgot.  It splattered everywhere and overflowed in a thick puddle as well.  Every drop that hit her chest caused it to lunge another cup size forward.  In seconds the puddle and her boobs met half-way.  Her thirsty boobs sucked up the entire puddle and exploded.  Her husband instictively pulled out, but it proved unnecessary.  Her bursting boobs sent him flying against the mirror over the dresser and there was no way he could have stayed in her.  His efforts did have one effect, though: his dick was now pointed straight at her and the pulsing streams had grown to the size and speed of silly-string.  Two streams each brought her boobs 2 feet towards him, upward and sideward, but her powerful breasts had the strength to keep from falling downward as she layed underneath them on her bed.  Her boobs were rubbing against the ceiling, the furniture.  Rubbing and rubbing and oooh it felt good to her.  Especially as they rubbed against the warm body she so loved.  Her boobs filled with milk at the sensation, but she could not reach them to milk them.  And she screamed with pleasure.  "Oh, ofcourse... they're... more... *sensitive*", she managed to yell.  If they were D cups being lightly caressed with an electric fan they'd give her orgasms.

She was feeling the lifetime pleasure of every woman in the world.  Her husbands penus, still very erect, was pressed firmly between him and her expanded chest.  The pleasure filled her with milk, the milk grew her boobs, and her boobs pressing against every obstacle gave her pleasure; starting the cycle again.  Their house flattened a few seconds later.  Meanwhile the semon pressure, grown from touching such large boobs so firmly, grew large enough to push the boobs that were stopping its flow.  Lara rolled two houses down from a 7 foot wide eruption (though only 1/4" wide at the source).  The stream bent in mid air towards the boobs that sucked it in.  She laughed, giggled and yelled "Wheeee" in purest ecstasy, making the stream of semon intensify with increased pleasure and her boobs grow into the nearby electrical lines.  The sun beat down hard on the large, wide boobs, also accelerated from all the milk in her "pumpkins".  Her 73rd orgasm overlapped with her first 72, which still had 28 minutes left before they would end and making her pleasure and her growth 73 times faster.  Even so, all the other effects were just as intensified from their effect on eachother.  And every crushed house made her yelp in delight at the sensation.  So instead of merely growing steadily, every stimulation made her grow faster, and her size only caused more stimulation.  Fast moving cars were covered in the shadow of the chest that still would not succumb to gravity.  And the vertical growth was just as great, hitting planes and satellites.  Her husband was kept alive only by his recently gained super-human strength, absorbed from the source of everyone else's destruction.  She soon broke the sound barrier, 5 minutes into her first orgasm, and losing count on the number since they came so quickly and steadily; as did his.  His enhanced night-vision eyes stared at an endless sea.

Jose had failed to stop her before she grew to where his bullets and recently-acquired rockets only tickled liked so many caressing grains of sand, like a bare model sprinkling herself as she relaxed on a state-sized beach.  State, country, continent.  Each step took no longer than the step before it.  Earth now had a pair of mouse ears.  The ears drifted slowly away from the planet, with earth's newest super hero pushing them.  3 years later, they shrank again to a "reasonable" F as the effects subsided.  The couple returned to earth, leaving only when they needed to get jiggy.