Later…
Vanessa sat next to Maddie with a nervous hand rubbing the small of Maddie’s back. Maddie slowly brought her hands to her breasts and squeezed. Sure enough, twin wet spots formed on her shirt.
“Does it feel…weird?” Vanessa learned forward curiously.
Maddie crossed her arms over her chest and turned away, averting Vanessa’s gaze. “It um… it feels like– relief. There’s all this heat and pressure when I squeeze and it builds up and then I feel this tingling in my uh– yeah.”
“So, um, you should probably report that in the app...” Vanessa suggested.
“Oh right, lemme do that.” Maddie stood up somewhat unsteadily. She was still getting used to the massive weight on her chest. Even though she’d been a modest B cup just two days ago, her breasts had already swelled to... god, she couldn’t even estimate how big they were anymore. They seemed to be something close to the size of watermelons, or at least medium sized ones.
“Hey, does the app have a way to contact the researchers?” Vanessa asked. Maddie shrugged. “You might wanna ask them if this is... normal,” Vanessa continued.
Maddie sat back down, her breasts jiggling with her movement. Vanessa stared, nearly mesmerized by their movement. Vanessa could feel herself growing wetter again. Maddie’s milk had tasted so good... so much sweeter than regular milk. She nearly had to hold her hand over her mouth to stop herself from asking Maddie if she could taste more.
“God, how am I ever gonna go to class like this?” Maddie wondered out loud. “Especially if they keep growing... I mean, I don’t think I could fit into any of my old clothes anymore.”
Vanessa couldn’t help but picture Maddie in one of her old bras or shirts, her humongous breasts spilling out of the struggling fabric. “Um, I could go out and get you some stuff to wear,” Vanessa said. “I understand iif you don’t wanna go out like that.”
Maddie thought about this for a minute. She shook her head.
“I can’t make you do that, V. Lemme find something to wear and I’ll come with you.”
________________


Vanessa raised an eyebrow, but stayed silent. A few minutes later, the two girls were sitting in the car as Maddie tried to stretch the seat belt around her tits. After quite a bit of exertion, she was finally ready to go.
The drive to the mall was mostly silent. Maddie kept shifting in her seat, trying to reposition all of her extra flesh in a way that wasn’t supremely uncomfortable. It didn’t seem to be working. Vanessa tried her best to keep her eyes on the road, but secretly wished she could reach over and grope Maddie.
Once inside the store, the girls marched straight to the plus-size section.
“Ugh it’s so hard knowing what to get ‘cause I have no clue how long I’ll keep growing,” Maddie mused as she flipped through a rack. “Like, I’m pretty sure I’ve gotten bigger since we got here.” Maddie was absolutely right, but not only about her breasts. The shorts she managed to get on were starting to hike their way up Maddie’s thickening thighs.
“Uh…yeah.” Vanessa trailed off, watching Maddie’s wedgie climb deeper between Maddie’s growing ass.
“Maybe I’ll just get multiple sizes.” A growing collection of garments gather in Maddie’s arm. “Just in case.”
Vanessa looked around. Ever since they’d walked in the store, she’d noticed all the eyes on Maddie. People seemed to linger their glances a little too long on her. Vanessa couldn’t blame them, even in her oversized t-shirt, anyone could see that Maddie was hiding something. To make it even worse, every time Maddie brushed her chest up against something –which happened pretty often, given how unfamiliar she was to her new size– her nipples would harden. As her nipples hardened, they would grow a little each time, making it harder to avoid anything she reached for. Maddie grabbed the last few things she wanted to try on from the clothing rack, and as she draped them over her arm the cloth brushed against her stiff nipples. Maddie clamped her hand over mouth, suppressing a moan.
“Alright–” Maddie announced as she shook off the chills that ran through her, “I’m gonna go try some stuff on.” holding a pile of shirts, bras, hoodies, and dresses in her arms. Vanessa followed her over to the changing rooms and sat down on what must have been the ‘boyfriend seat’ outside. She didn’t get to rest long, though.
“Vanessa?” Maddie called from a changing room. “Can you come help me?”
Vanessa took a deep breath and waited by the door until she heard Maddie unlatch the lock. Inside, unsurprisingly, Maddie was stuck. She had gotten a shirt halfway down her giant breasts but it was clearly too small, and she couldn’t push it any further. “I can’t... reach... to get it... off...” Maddie explained as she struggled with it. Vanessa grabbed the shirt and quickly realized that it wasn’t going to come off on its own. Thinking quickly, she grabbed a handful of one of Maddie’s tits to somehow push it out of the way of the hem of the shirt. Maddie moaned as her nipple squirted out more milk in response to Vanessa’s warm hands pushing against her.
“Maddie! Someone’s gonna hear!” Vanessa chided. Maddie blushed and apologized, insisting that she couldn’t help herself.
“Well try harder.” Vanessa scolded playfully, not succeeding at hiding a smirk. The truth is, Vanessa didn’t want Maddie to try. She wanted to squeeze her breasts, taste her milk, listen to her gorgeous moans... but no, she had to focus on the task at hand. Carefully, Vanessa helped Maddie get the shirt off. Maddie thanked her.
“Alright well, I’m gonna go back out.”
“You don’t…have to,” Maddie shyly replied. “I mean, you’ve already seen everything so...”
Vanessa didn’t need to be told twice. She sat on the little bench and watched as Maddie tried different things on. It turns out, Maddie was already comfortably filling up a J cup, the largest size they had in the store. Maddie asked Vanessa to go back out only to get more big shirts and hoodies in case she grew out of that too.
The longer Maddie went trying on clothes, the more Vanessa’s eyes lacked the ability to look at anything else other than Maddie’s gorgeous breasts and thick figure. She found herself getting wetter and wetter. But finally, Maddie was finished trying everything on.
“Okay, lemme just put my old clothes back on and then we can go.” Maddie was standing topless in front of Vanessa.
“Wait,” Vanessa said before she could stop herself. Wordlessly, she reached out and grabbed one of Maddie’s breasts. Maddie moaned.
“Quiet.” Vanessa commanded, and stepped closer to Maddie, leaning down. She latched her mouth onto Maddie’s nipple and began sucking, swirling her tongue around the nipple. Maddie started to moan and, panicking, grabbed the first piece of clothing she could and stuffed it into her mouth to gag herself. Vanessa drew out mouthfuls of milk, and with each gulp took a breath to keep going. With one hand, Maddie began playing with her other breast and nipple, tugging and rolling, sending waves of pleasure throughout her whole body. She wanted nothing more than to scream loud enough to make the whole store hear her. Vanessa switched breasts, drinking her fill from the other one too. It tasted like... Vanessa couldn’t even compare it to anything. It just tasted good. Amazing. Heavenly.
The combination of Vanessa’s skilled tongue and Maddie’s own hands was too much for her. She bit down hard on the shirt in her mouth and came, barely able to contain her screams. She huffed into the shirt that was still between her teeth, flushed red in the face and met her eyes with Vanessa’s.
“I’ve never... from just... my nipples...” Maddie panted.
Vanessa almost looked proud of herself, wiping the milk the had dripped down her chin and licking it up. “So shall we go then?”
Maddie smirked, a gleam in her eye. She shook her head and dropped to her knees. “I wanna repay the favor.”Maddie’s hands found Vanessa’s fly, unzipped her jeans, and yanked them down to her knees. Vanessa almost stopped her, almost insisted that it wasn’t necessary. But she was so unbelievably horny from everything that had transpired that day that she found herself unable to reject Maddie’s advances. Vanessa helped Maddie take her jeans and panties off. Maddie scooted forward a little and rested her knees on the sides of the tiny changing room cubicle.
Maddie dove in, lapping at Vanessa’s pussy. What she lacked in experience, she certainly made up for in enthusiasm. Vanessa wove her fingers into Maddie’s hair. Maddie took one hand, tracing her fingers up Vanessa’s thighs, climbing higher and higher until her fingers found Vanessa’s clit. Vanessa pulled Maddie’s hair just a little too much and was about to apologize, when Maddie moaned instead. Intrigued, Vanessa tightened her grip on Maddie’s hair, eliciting another moan.
As Maddie ate her out, Vanessa opened her eyes to look at Maddie’s gorgeous body in front of her. Her tits were so big they nearly touched the ground while Maddie was hunched over like that. The erotic sight of Maddie’s humongous breasts jiggling and moving as her tongue worked at Vanessa’s clit was enough to push her over the edge as she came, clapping her hand over her mouth to muffle the sounds.
Now it was Vanessa’s turn to be out of breath, and Maddie’s turn to look proud of herself. She wiped her mouth off with the same shirt she had used to gag herself, “Well…we definitely have to buy this now.” Maddie chuckled, her head still figgy from her orgasm.
Maddie put her clothes back on. It seemed that the shirt she’d come in with was fitting just a little tighter than when they had walked in. She didn’t want to believe it, but it seemed that she was still growing.
“Hey Maddie? Your um, your nipples...” Vanessa started. Maddie looked down and was surprised to see her hard nipples clearly visible through the shirt.
“Oh nooo.” Maddie groaned sarcastically. “I think maybe it’s ‘cause I’m turned on? But I don’t think we can um –y’know– do it again, and they’re gonna close soon...”
“Well, guess we’ll just have to deal with it,” Vanessa replied in a reciprocal tone, shrugging slightly.
The two of them left the changing room, looking around to see if there was an angry manager. Much to their surprise, there was none. As they walked through the store, checked out, and went through the parking lot back to the car the extra eyes on Maddie were obvious to both of them, it was unmistakable now.
“You know, if you keep growing, maybe you could try to do online classes or something.” Vanessa suggested as they drove back to the apartment.
“I don’t know,” Maddie said. “I think I’m gonna be okay.”
________________


Much to Vanessa’s surprise, Maddie kept going to class and living her life just as she had before. Within a week, it became clear that Maddie had reached her size plateau, as it seemed she wasn’t getting any bigger. Her milk filled breasts had grown to the size of beach balls. She had surprisingly grown accustomed to them too. Maddie had a wardrobe filled with hoodies that could engulf most of her chest, allowing to walk amongst others without too many prying eyes. Maddie had bought dresses that accentuated her figure, her hips had stopped filling out, and that also left her with a thickly padded ass and thighs. Even her belly had grown round with the rest of her, but Maddie loved every inch of herself. She felt the most comfortable she had in…ever. Both Maddie or Vanessa didn’t know if this was a good or bad thing that she had seemed to stop growing. Her milk production definitely increased though, to the extent that Maddie had to be milked at least once a day or she would be too uncomfortable to do much of anything at all. Her breasts had stopped growing, but if Maddie wasn’t milked before going out, they would still swell up nearly a whole two cup sizes. Afterwards, they’d return to their still massive scale.
During one of their daily milking sessions, Maddie told Vanessa about her day, “I slept in the other day, and was nearly late for class.”
“I remember! You flew out of your room, bounced through the living room right past me and I didn’t know if to chase you or let you go.”
“I guess I had to learn this lesson the hard way. I got to the lecture in time, but the entire class I was squirming in my seat I was so uncomfortable. My boobs were stretching one of my hoodies, and my bra straps were digging into my back. I was afraid I would start to leak right there in class, and I– I uh… wait was I talking about?” Maddie tried her best to remember.
“Get your story straight, girl.” Vanessa chided.
“I’m sorry! It’s a little, um, distracting.” Vanessa's hands were firmly pressing into one of Maddie’s massive breasts, massaging the milk out of her and into an empty bottle. Well, the bottle had started out empty but now it was at least halfway full, and Vanessa wasn’t even finished with her first breast.
“Distracting, huh?” Vanessa said impishly, tweaking Maddie’s nipple.
Maddie yelped in a combination of pain and pleasure, rolling her eyes. “You wouldn’t get it. It’s distracting like, all the time. Anyways, I was sitting in class, trying to pay attention, and I accidentally brushed my nipple up against my desk or something, and then all of a sudden I’m thinking about getting off instead of 19th-century literature! But… I had to get out of there before it got worse! I ran out and found an open stall in the bathroom. I milked myself like my life depended on it. Once I was done I had no idea how much time had passed, I walked into a totally different lecture– I had missed the rest of my class!
Vanessa chuckled, but she couldn’t help but get a little turned on by the image of Maddie getting all hot and bothered during class. She decided to change the subject so she could actually finish the milking before thinking about fucking. It was inevitable either way, obviously, but Maddie needed to be milked first.
“What do you think we should do with the milk?” Vanessa asked. “It’s starting to be... a lot.”
Maddie glanced over to the fridge, where she knew multiple bottles were already just sitting there. Maddie bit her lip, thinking about her options. “I guess we could sell it? Make some extra money?”
“I do like that option,” Vanessa said. “But I don’t know the first thing about doing that.”
“I can do some research once we’re done with this!” Maddie said excitedly. “Maybe I should check with the app first, see if they need me to save any of it.”
Vanessa agreed and got back to the task at hand. Well, with how big Maddie had gotten, it was more like the task at both hands.
________________


The next morning, Vanessa woke up bright and early as she always did, and stumbled into the bathroom still groggy with dreams about fucking Maddie, as was the usual of late. She banished sleep from her eyes as warm water cascaded down her face. She began washing her neck, her arms, and as she lathered up soap over her chest… something didn’t feel right.
She looked down, blinking through the running water. Something was definitely not right.
Where yesterday had a nearly flat chest with tiny, pert nipples, there was now something much more.
“Maddie?!” She called from the shower. “Can you come in here like– right now?!”
Seconds later, Maddie –still rubbing the sleep out of her eyes– was in the bathroom. Vanessa whipped the shower curtain back.
“Look,” Vanessa said, pointing at her chest.
“Oh my god,” was Maddie’s only response. Her mouth hung open.
The change was more than a little shocking, but there was no mistaking it. Vanessa’s breasts had grown too. Even though she’d been fairly flat-chested only yesterday, she now had to have been a full D cup. Not only that, but Vanessa had a curvier figure too, hips were far more pronounced than before. She stood glistening wet as the water continued to rain all over her, smiling at Maddie. “You like what you see?”
Maddie grinned wide and quickly wiggled her butt out of her sweats and unzipped her hoodie, dropping it to the floor.
“Wait!” Vanessa laughed excitedly, “What are you--” Vanessa was interrupted by Maddie’s mouth on hers, kissing her deeply. Maddie’s giant tits were pressed up against Vanessa’s now not-so-tiny ones. Vanessa moaned into Maddie’s mouth, her new breasts just as sensitive as Maddie’s had been in the beginning.
Maddie pulled away from Vanessa and moved her head lower, taking one of Vanessa’s nipples into her mouth. Maddie moaned loudly.
“C-careful, Mads,” she panted, “I don’t have... any milk... like you...”
Maddie unlatched and looked up at Vanessa with a mischievous glint in her eyes. “...yet.”
Maddie dropped to her knees and pressed her face into Vanessa’s pussy. Vanessa’s moans kept getting louder, although she didn’t tend to be nearly as much of a screamer as Maddie. Maddie began kneading one of her own breasts in her hand. Vanessa lightly touched Maddie’s shoulder, gesturing to give Vanessa her hand, encouraging Maddie to reach up and play with Vanessa’s breasts.
As Maddie played with Vanessa’s nipple, Vanessa began pinching and playing with the other. Soon Vanessa was screaming in pleasure, not nearly drowned out by the sound of the shower. It didn’t take long for Vanessa to come, shaking against the tile wall. Maddie giggled to herself as she tried to peer up at Vanessa. Maddie’s hand slipped down Vanessa’s chest as she began to stand up, but she felt something. Maddie began feeling around Vanessa’s chest near her ribs.
Vanessa let out a startled laugh. “Whoa hey! I was already ticklish before, you don’t have to–” She was stunned silent as Vanessa realized at the same as Maddie that there was a small, budding breast just under Vanessa’s impressive new rack. Not just one breast, but two…
Maddie looked back up at Vanessa’s face, the shower hissing away. “Should uh… probably report that in the app.”