Melissa continued examining the directions as she hopped out of the tub. As she stood outside the hot tub, now wondering how much of the bloating of her nipples and clitoris she could put down to the sudden change in temperature, Melissa decided she needed to recover her swimsuit from the tub.

Melissa decided she needed to recover her swimsuit from the tub. She leaned over the hot tub and reached in, careful not to dip her already enlarged nipples in the water. She leaned in further... and further... she could almost reach... and... *Splash!*

Melissa grabbed her swimsuit and climbed back out of the tub. Her nipples were throbbing now, and turning to the mirror on the wall she watched her her aereola physically became wider and her tits became larger. If she wasn't 150% larger, she had to be by now.

Britney wanders downstairs and finds Melissa naked.

She tried to put the top back on, just to see how much her breasts had grown. Melissa was fairly worried as she found herself now practically spilling out of the bikini. However temporary or permanent the changes, her breasts had to be at least a C-cup. Maybe more.

I really should get inside and shower, she thought, or better yet, call 9-1-1. But instead, she found herself standing just where she was. She felt drugged, stoned... her couldn't quite get a handle on the situation and she noticed that she had begun masturbating again. Just then, she felt something wonderfully warm and soft come into contact with her back while a pair of hands slipped over her eyes.

"Guess who," said Britney's voice as Melissa basked in the wonderful feelings of Britney's firm breasts pressed against her back.

"Help me," Melissa said, feeling the last of her willpower ebbing away.

"Help me," Melissa said, feeling the last of her willpower ebbing away.

"Gladly," Britney said as she dropped her hands from Melissa's eyes and grabbed her friend's breasts, groping and massaging them.

"No, not like that," Melissa said, "There's something wrong with me. My breasts are-"

"Glorious," Britney said, finishing the sentence, but not quite in the way Melissa had planned.

Britney gets in the hot tub. Melissa thinks that she needs to warn her friend about something, but what?

Melissa giggled. The smile on her face broadened. She felt very good.

Britney Spears was in a hot tub infront of her. It looked as though Britney was masturbating with some kind of sex toy. I love the way her tits are jiggling, Melissa thought, momentarily mesmerized by the way Britney's breasts were floating.

A thought wandered into her mind, unsure of where to go. Your tits are different, it said. Looking down, Melissa saw that her breasts did look different -- rounder, fuller, perkier -- and her nipples were so big. They look like little cocks, she thought, giggling again. Don't they have something to do with the way it smells? another thought said.

"Yes, that's it," Melissa said, not sure of whether she had said the words of merely thought them. She was so relieved. She had figured everything out. Glad everything was sorted out, she jumped into the tub with Britney and began kissing her.

For her part, Britney withdrew the large dildo that she had brought and plunged it into Melissa's moist, ready cunt.

The more intense combination of chemicals began to affect Britney's body as well. The fragrance beads that Melissa had dropped into the tub earlier were still just as potent and their chemical effects began to effect Britney. As the initial side effects began to assert themselves, Melissa became transfixed with watching Britney's breasts change. She watched the aerola widen just as hers had. She gazed as the tits enlarged. She was enraptured at the sight.

Britney, on the other hand, looked down at her new breasts and giggled

"Is this, like, supposed to happen?" Britney asked, staring down at her growing breasts.

"I don't know," Melissa said.

Both took on a look of deadly seriousness. "But it happened to me, too!" Melissa said, bringing Britney's hand to her enlarged and very sensitive breast. The two began laughing hysterically, the laughter gradually changing to moans as they two felt up eachother's breasts.

"Are you really horny?" Britney asked.

"Yes."

"Me too!" Gales of laughter, this time subsiding as the two explored eachother's pussies under the water.

As Carter looked down at them from an upstairs window, he couldn't believe how well his plan was coming off.

As Carter looked down at them from an upstairs window, he couldn't believe how well his plan was coming off. Little did he know that across town, at an old chemical plant, a meeting was taking place that would certainly effect the outcome of his plan.

"Dat you Twotones?" a grizzled voice asked. The man walked out across the metal bridge that was suspended over a large vat of green goo.

"Yes, it's me," Twotones replied in a deep, dark, sophisticated voice. "Do you have what was agreed on?"

"Yeah, I got the stuff," the man replied. He was a simple go-between employed by Carter to do his wheeling and dealing with the crime boss known as Twotones.

"Slide it over here," Twotones said.

The man placed the bag he was carrying on the bridge and gave it a good kick. It slid across the expanse where Twotones grabbed it. In return, Twotones kicked a similar bag across the bridge where the man grabbed it.

"Be very careful with that," Twotones said, "What you are holding in your greasy palms is the result of years of research."

"I'm always careful, Twotones," the man said as he turned to leave.

Twotones grinned wildly. Everything was going according to his plan.

Carter and Twotones had a deal, but Carter was cheating him, so Twotones sent a little surprise in the chemical bag. Tonight's shipment would send Britney so far beyond the point of no return she would be useless.

The man pretending to be Two-Tones, the gangster, had been the one to suggest the chemical component of the mind-control experiments, largely because he did not believe that people could be controlled through hypnosis alone for any extended period of time. Carter's fanciful idea that Britney Spears could somehow be operated as if by remote control was a ridiculous idea, in his opinion. One had to change a person's nature to make them start behaving differently. The permanent mental changes he envisioned would be far more bankable than some attempt to manipulate a pop star.

Of course, there were disadvantages to his plan. After tonight, Britney's singing career would be over, as would her fledgeling acting career. But on the other hand, there were millions of dollars to be made managing the career of Britney Spears, insatiable porn star and all-around bimbo. Of course, given the nature of this final ingredient, it would have to be very carefully administered; the size of the dose had been carefully calculated based on Britney's weight, metabolism and other characteristics. Getting the dose wrong here could have even more disastrous consequences and side-effects than, for instance, using more than one of those fragrance balls in the hut tub.

Today, the chemical would be administered through a special variety of tanning lotion. Carter had already formulated the plan: the girls would apply the tanning lotion and go lay out in the backyard to take in the sun. The longer they layed in the sun's beams, the more the chemical would activate. The catch was that they had to stay in the sunlight for exactly two hours, no more and no less. Otherwise the consequences would be unpredictable.

And so, Carter made the final preperations...

As he looked down at the two girls fucking eachother's brains out in the hot tub, Carter found himself surprised by their libidinousness. Britney's could be explained, but Melissa's... That, of course, was his main worry about the lotion. He hadn't let his compatriots in on his coup in snagging Melissa Joan Hart as an added bonus. He hoped she handled the lotion okay. But now, his problem was to get them to stop having sex long enough to need an excuse to start again. He was quite sure that either one would jump at the chance to rub suntan lotion into the other's flesh given the right circumstances.

Looking down, he saw that Melissa's legs were still in the hot tub but that her torso was out. She was massaging her breasts while a mostly-submerged Britney performed oral sex on her. Her breasts look a little odd, Carter remarked to himself as he watched her grab one of the fragrance balls and hurl it into the pool while her hips bucked in obvious orgasm. The realization suddenly hit him: How many of these balls have they used? he wondered as he rushed down the stairs. He would figure out how to get them out of the tub and separated when he got there.

When Carter got to the hot tub, Melissa and Britney ignored him. He called to them, tapped them, tickled them, shouted at them, and caused as many distractions as he could think of, but they were clearly more interested in each other than in anything he could say or do. Frankly, Carter wasn't sure how to proceed. Counting the empty spaces in the bead box, he estimated the girls had used almost one of every flavor in the box, and believe you me - there were a lot of flavors in that box. Carter wasn't sure if he could ever seperate them.

Carter had a pretty good idea of how to get the girls' attention over later. Taking the remaining fragrance balls with him, he went downstairs to where he had had the hot tub controls installed. Adjusting some levers and knobs, he set the tub to drain its current contents into the waste water system and replace them with cold water from the water main. It would take about half an hour but he was pretty sure that in combination, the absence of the strange and wonderful chemicals and the sharp drop in water temperature would cause them to move their lovemaking to another location. He would strike then.

One thing concerned him though. When he had been trying to get their attention, he had noticed that the breast growth side effects were very pronounced.

Meanwhile, back in the rapidly cooling tub...

"This water is too cold!" Britney yelped, "It's ruining everything!"

Melissa stood up from the cool tub and said, "We should go someplace else... I'm not ready to stop yet."

"Where should we go?" asked Britney.

"Why don't we go upstairs."

But on the landing, the two starlets, still groping and nuzzling eachother's goose bump-covered forms ran in to Carter. Too affected by the fragrance balls, the two didn't even think to cover themselves up; Melissa didn't even think to take her fingers out of Britney's twat as she spoke to Carter.

"The pool got cold," she said simply.

"You know what you two girls need?" he responded.

"No," Britney said, realizing what Melissa was doing to her and extracting her friend's fingers.

"You need to warm up in the sun," he handed Melissa the bottle of tanning lotion. "You two go out there and relax on the towels I've put out. I'll be down with a picnic lunch in a little while."

"Okay," the two said in unison and bounded down the stairs.

"You need to warm up in the sun," he handed Melissa the bottle of tanning lotion. "You two go out there and relax on the towels I've put out. I'll be down with a picnic lunch in a little while."

"Okay," the two said in unison and bounded down the stairs.

The sun was shining brightly and it was perfect tanning weather. The girls spread out on the towels, ready to take in the rays.

"Want me to oil you up?" Britney asks Melissa, eyeing her breasts hungrily and holding the tanning lotion.

"Do you have to ask?" Melissa replies.

Melissa was feeling a little disappointed in how the tingling, euphoric feeling from the pool was subsiding. Her sexual desire hadn't subsided with it; her pussy felt inflamed, sensitive but aching to be touched. Britney had only made it from Melissa's neck, halfway down her shoulders when she found she could wait anymore. She spread the starlet's legs and oiled the area around (and in) her friend's cunt for a few moments before she returned to her back, then it was her arms, then her cunt, her middle back, her cunt, and so on.

Melissa could not believe how wonderful her pussy felt. It was weird; the feeling of tenderness was vanishing as more lotion was added, replaced by a kind of passive arousal. Oddly enough, Melissa felt like she was on the verge of orgasm, whether Britney was touching her or not. Once her back was finished, Melissa turned over. God Britney's tits look huge, she thought before the singer squeezed the remainder of the bottle's contents onto Melissa's torso. Britney then threw herself onto Melissa's chest, rubbing her tits all over Melissa's lubricated by the huge puddle of lotion covering Melissa.

Fifteen minutes later, the girls were talking about something. Carter didn't know what about though; he was watching them from his upstairs window.

This isn't how I expected things to happen, he thought, They should be so horny by now that they shouldn't be able to keep themselves away from each other. They must have more self control than I realized. But what turned Carter's curiosity into panic was when...

That Britney had covered Melissa in all of the lotion, resulting in no lotion for Britney but a double dose for Melissa!

Carter ran out to find Britney looking down, concerned at Melissa's convulsing form. Melissa's eyes were bright and unseeing, her face plastered with an expression of complete bliss while she repeated in a low voice, "it feels so good... so good... so... so good... so..."

Britney, despite her continuing sexual hunger was feeling some of the euphoria of the hot tub wearing off. "Carter," she asked, pointing at her changed breasts, "what have you done to us?"

Both looked horrified as Melissa...

Before Carter could answer, he and Britney listened as Melissa's chanting grew faster...

"It feels so good..." she chanted, "So good... so good.. so good... good... good... goodgoodgoodgood...gooodaieeeeeeeeewwwwwaaaaaaaaaaaaa!"

Carter Musgrovington was in the car and on his way to the airport by the time Britney's system worked out enough of the drugs to realize how badly off Melissa was. And by the time the ambulance had arrived, Melissa's tiny body had absorbed virtually all of the lotion.

When Melissa was released quietly from hospital three months later, people assumed that she had undergone cosmetic surgery. Her breasts were a D-cup now, rivalling those of Jennifer Love Hewitt, hanging very impressively on her tiny frame. She appeared to be in excellent physical health, too, her face giving off a rosy glow in virtually all of her appearances.

There was talk of re-starting Sabrina with all the interest in Melissa's new look but to everyone's surprise, Melissa instead announced she needed to be fucked constantly and would devote the rest of her life to the pursuit of sexual pleasure.

"And so," Melissa said from behind the podium, "Knowing that there is no way to treat my condition, I have decided to devote the rest of my life to the pursuit of sexual pleasure."

Britney was watching the press conference from the comfort of her TV room. She couldn't believe what she had just heard. After Melissa's encounter with Carter's tanning lotion, every inch of Melissa's body had developed into an errogenous zone. Three months of medical treatment had allowed Melissa to regain her composure, but there were still days where all she could think about was sex. Now that Carter was rotting in a jail cell in Montana, Britney was free to go about her own life again. Several weeks of medical treatment had restored her body and mind... well, her breasts were a little larger, but overall she was pleased that she was relatively back to normal.

But Melissa? Britney couldn't believe that she was leaving show biz to have sex all the time.

But that wasn't Melissa's intentions at all.

"So, I have decided," Melissa continued at her press conference, "To found a special institute to study sexual pleasure. I will personally be overseeing all of the research and, hopefully, I can find a way to slake my sexual desires."