When Maddie got home Vanessa was on the couch, eating another bowl of cereal. “Hey Mads, how was your-- oh my god.” When she saw Maddie this morning, she knew that she had grown, but now...her breasts completely filled the hoodie. What was once an oversized, roomy garment was now stretched to its limits.
Maddie kept fidgeting with the zipper, yanking it up as it slowly inched down from her massive jugs yearning to be free. “I don’t wanna talk about it,” Maddie choked out, her face broadcasting how uncomfortable she was. She looked at Vanessa, legs crossed and hunched over in a thin tank top, obviously still unaffected by the drug. Maddie huffed and stormed off to her room.
Vanessa gawked as Maddie walked away, and saw the shimmying wedgie that followed her. Maddie’s ass was practically swallowing the shorts she was wearing. How the fuck? “Maddie wait!” Vanessa sprang up and followed Maddie into her room. Vanessa pushed open the cracked door just as Maddie yanked the zipper down, freeing her breasts. Maddie stood frozen, her eyes wide, wincing as the cool air rushed to her warm skin. “I was uh… I was gonna ask if you needed any help. But…” Vanessa swallowed hard. “Have you seen the rest of you?” Vanessa gestured an hourglass shape in the air and nodded towards Maddie’s wall mirror.
Maddie turned slowly, almost scared to look. She gathered as much of her breasts as she could in her arms, peering around them in the mirror. Maddie’s hips seemed to have grown as well, plumping up her ass and thickening her thighs. “I don’t know what’s happening anymore, I’m getting scared.”
Vanessa hugged Maddie from the side. “Hey, it’s okay. Do you want to call them?”
Maddie sniffled pitifully. “I-- I logged everything in the app earlier… I haven’t heard back--”
Just as Maddie was about to sob, her phone *dinged*. Maddie opened her phone, reading aloud a message from the app, apparently from the busty nurse. “Hello Maddie! We’re sorry to hear that you seem to be having an extreme reaction. However, at this point in time it’s nothing to worry about. Any swelling should go down in a few days, if there're any other concerns please let us know! Could you send us your measurements so we can keep track of your fluctuations in size?”
“Well, that’s hopefully comforting in some way.” Vanessa tried to sympathize as she rubbed Maddie’s back to comfort her.
Maddie sniffled and wiped away her frustrated tears. “Will you… will you help me?”
“Of-- of course!” Vanessa ran out of the room and quickly returned with some body measuring tape. Vanessa lightly touched Maddie’s shoulder, gesturing that she turn around. She wrapped her arms around Maddie’s waist from behind her and brought the tape around her butt. She pinched the tape together and held it close. “Alright…” Vanessa shimmied the tape up and got Maddie’s waist. “Huh. Alright turn around.” Maddie turned around and faced Vanessa, her face flushed pink and big, doe eyes looking right at Vanessa. Vanessa went in with an awkward sort of hug, pressing herself against Maddie’s breasts and bringing the tape across them. As she did so, her fingers ran lightly over Maddie’s soft skin.
Maddie moaned slightly, clearing her throat after. “Ahem...sorry.”
Vanessa was blushing a bit. “It’s alright. Okay… Maddie, you’re...bust is pushing 49”, your waist is somehow 28”, and your hips are 46”!”
Maddie said nothing, looking even more flustered. “Um… okay. Vanessa, do you think I could have some uh… privacy?”
Vanessa immediately understood. “Oh-- oh yeah, of course!”
________________


With Vanessa out of the room, Maddie turned back towards the mirror. This time, she seemed to be admiring her figure. She poked her plush hips, squeezed her butt as it bounced back. She unbuttoned her shorts and shimmied them off, laying down on the bed. She tried to lay on her back, but her tits nearly covered her face entirely. Maddie rolled over onto her chest, burying one of her arms under them so she could pinch and play with her nipples. She brought her free hand to her pussy and started massaging circles around her clit. After a few minutes, she slipped a couple of fingers inside.
In the living room, Vanessa turned up the TV to try and drown out the loud moans already coming from Maddie’s bedroom. I guess I’m lucky I got the placebo, she thought to herself. But then a small shred of doubt started to grow in her mind: She had never really wanted bigger tits, and it never really bothered her when she was teased about not having large breasts. But Maddie just-- and overnight! I mean if it’s possible then why not me? No, she couldn’t be jealous of Maddie, that would be ridiculous. Maddie seemed miserable.
Maddie was practically in a trance. God… I’m so big. Everything feels amazing. I love it. She sat up, grabbed a pillow and folded it, and straddled it between her thighs. Maddie started to grind against the pillow, riding it as she played with her nipples. “Ohhh FUCK!”
Another pleasure filled wail cut through the volume of the TV. Well maybe not that miserable. Vanessa apprehensively picked up the remote again, slowing turning the TV back down, listening to Maddie get herself off. I’m sure her tits are big enough she could suck on them. Vanessa spread her legs and reached under her sweats, imagining Maddie sucking on her own massive tits. She could envision it almost perfectly, and then pictured Maddie hanging her breasts over Vanessa’s face. Vanessa could only imagine how amazing Maddie’s skin would feel brushing up against hers, or how good it would feel to fit her mouth around those growing nippes. Vanessa, now shimmying her butt out of the sweatpants, reached under her leg with her other hand and started to finger herself as she kept playing with her clit. She wanted Maddie to smother her with those beautiful boobs, and she wanted to suck on them for hours.
Vanessa heard the click and turn of Maddie’s bedroom door and scrambled for a blanket. Maddie came out of her room, cheeks flushed pink and now resigned to wearing the largest shirt she had and only some booty shorts with it. “Uh, hey. You hungry?”
“Ah I-- I already ate.” Vanessa stammered, hoping that it wasn’t obvious she was just masturbating too. Maddie began to make herself dinner, and Vanessa couldn’t help but feel her eyes drawn to her roommate and that gargantuan chest of hers. She kept looking away so that Maddie couldn’t notice. Once Maddie prepared herself a plate, she plunked herself down on her usual couch spot...next to Vanessa.
“So, uh, how was your day? You want to talk about what happened?” Vanessa cautiously asked.
Maddie rolled her eyes. “It was awful. Everyone was staring at me all day, it just… ah, it sucked.”
“I’m sorry.”
Maddie shoved her breasts together like they were in the way, making them sway under her shirt. “They’ve seriously been growing all day. Like, I had this chem lab this afternoon, right? And I --god this was so embarrassing-- but I kept bumping into people, and I even knocked over a beaker with my tits. There was a huge mess and I ran out in tears, it was so humiliating.”
“Oh wow.”
Vanessa tried to ignore it the best she could, but she couldn’t help but get turned on by picturing Maddie and her giant breasts growing larger and larger as the day went on. Maddie’s massive boobs wreaking havoc throughout her day, and all those people staring at her--
“Hey Vanessa?”
“Y-- Yeah?”
“Can I tell you something, something that’s gonna be probably a little TMI?”
“Yeah sure.” I mean, I was just imagining myself sucking on your nipples. So…
Maddie shifted in her seat. The fabric of her extra large shirt looked strained. “Well the thing is, I’ve been ridiculously...horny. Like, having-to-sneak-off-to-the-bathroom-just-to-come-so-that-I-could-focus-in-class horny”
Vanessa was already picturing Maddie in a bathroom stall, her panties around her ankles, her huge tits heaving as she got herself off. Vanessa could feel how wet she was getting again. Maddie rambled on.
“And well, I mean you heard me so obviously I just... I gotta be very honest with you, I’m already horny again. It sucks.”
“Yeah that does sound like it really sucks, I’m sorry.”
“You’re so lucky you got the placebo.”
Vanessa just nodded. The two were silent for a few moments, watching TV.
“I could... help you,” Vanessa said softly.
“Hm? What?”
Vanessa was instantly worried she had gone too far but she couldn’t exactly turn back now.
“If you’re that horny, I could maybe... help? If you think that would give you more...relief.”
“Maybe.” Maddie sounded unsure.
Vanessa sat up and moved towards Maddie on the couch.
Maddie bit her lip. She made eye contact with Vanessa for a surprisingly long time. “Okay,” she murmured as she moved her hands to start untying the knot of her shorts.
“H-- Here, let me.” Vanessa got on her knees in front of the couch where Maddie sat, trying her best not to seem too eager. Vanessa could hear the pulse pounding in her ears, when she reached for the knot that kept Maddie’s shorts tight around her hips her fingers were shaking. She made quick little fists and clamped her lips together to keep her lips from trembling. As she loosened the knot she tucked her fingers under the waist of Maddie’s shorts. Maddie lifted her thickly-padded ass and let Vanessa pull them down and off her legs. “Maddie… wow. You’re getting really thick.” Vanessa started to kiss and caress Maddie’s thighs, the soft skin brushing against the shell of Vanessa’s ears. Her kisses began to trail closer and closer to Maddie’s waist when Vanessa felt something bump her head. Vanessa looked up and Maddie’s head was completely eclipsed by her swollen breasts, still stretching out her hoodie. Without saying anything, Vanessa stood up and straddled Maddie.
Maddie yelped. “Vanessa! Wha-- what are you?” Maddie could just see Vanessa’s head crane over her breasts as she got comfortable.
“I told you I wanted to help you.”
Maddie lifted the hoodie over her head and her massive breasts, now far surpassing M cups. Vanessa was transfixed in awe. Maddie’s skin looked so soft and perfect, and her breasts were so full and swollen. Her nipples were puffy, light pink and stood at full attention. Maddie leaned back and closed her eyes as Vanessa brought her mouth to Maddie’s nipple.
Vanessa made small circles with her tongue. While she sucked, licked, and teased Maddie’s nipple, she reached down between Maddie’s legs. Vanessa’s fingers gracefully maneuvered around and under Maddie’s underwear, her fingers instantly finding her clit.
“Be careful,” Maddie yelped. “Sensitive.”
With her fingers still circling Maddie’s clit, Vanessa took the other tit in her hand and started squeezing, taking in every inch of it. Her hand covered Maddie’s areola and not much else, and Vanessa started thinking about how Maddie could possibly get bigger. Unable to stop herself, Vanessa unlatched from Maddie’s nipple and traveled to the other, swirling it around with her tongue.
Maddie was far away just moaning now, reaching up and playing with Vanessa’s hair. As Maddie gripped Vanessa’s hair, thick locks spilling out from between her fingers, Maddie began to scream, her shrieks of pleasure echoing off the walls of the living room. Vanessa’s fingers around her clit with her mouth latched onto her nipple and sucking away were all too much. She screamed into an orgasm more powerful than she’d ever experienced in her life. “Mmmm oooh my god! Vanessa!! Don’t stop! Don’t stop! Don’t--” Maddie trailed off to catch her breath, nearly blacking out from the waterfall of pleasure.
As Maddie came, Vanessa felt her mouth suddenly fill up with a sweet liquid, and simultaneously she felt drops of something splatter the hand on Maddie’s other breast. She swallowed and looked up. The drops were a clearish white.
“Hey Maddie?”
“Yeah?” Maddie said meekly, still panting from the aftershocks of her orgasm.
“Did the doctor say anything about lactating?”
Maddie’s eyes went wide. “I don’t think so… what?” Maddie peered over her massive rack at Vanessa’s glowing face, milk dripping from her lips. “Oh, I guess I’m... lactating now.”