Been a hot minute since I've written a (non-Patreon exclusive) caption for my fictional genetic disorder Acute Hyper Homo Sequential Hermaphroditism so I figured I'd fix that.
Art By: ろうか
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Acute Hyper Homo Sequential Hermaphroditism, an incredibly rare genetic disorder which has popped up recently. Those who develop this genetic disorder experience a painful month-long transformation into the opposite sex. One out of every ten male to female cases of Acute Hyper Homo Sequential Hermaphroditism mutates, resulting in idiopathic hypermastia. Mason, better known as Macey now, is one such case, a young college student with slowly developing hypermastia who is currently keeping a ‘promise’ she made to her friend.
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Connor looked down at Macey who sat on her bed pouting with her head turned away from him. He would never dare to tell her, mainly because he didn’t want to upset her further, but even when she was upset she was simply too adorable. She even had her arms crossed which, instead of making her appear closed off, only accentuated her melon sized boobs as she was inadvertently pushing them up with her arms. “Come on Macey, we made a promise!”
“I don’t care if we did! It’s not happening!” Even without looking at him Macey could feel Connor’s eyes on her chest and she couldn’t even really blame him. If she saw someone with breasts even half as big as hers she’d have a hard time not looking but the subject they were currently discussing made it awkward. “We were obviously joking when we made that promise! I don’t even know how you remember it in the first place…” Back in high-school, when they were both young teenage boys with hormone addled brains they had made a promise that if either of them became a girl that they’d let the other one ‘tap it’. But that was before Acute Hyper Homo Sequential Hermaphroditism was even a thing and clearly made in jest!
It was Connor’s turn to pout as he furrowed his brow and crossed his arms across his wide chest. “Well if I was the one who got it I’d be honoring our promise.”
“Ugh! Fine!” Macey let her arms and shoulders drop as she released the tension in them and turned to look at Connor. “I’ll do it one time with you.”
“Really?” It wasn’t lost on Macey that Connor’s annoyance dropped instantly upon her telling him that and was replaced with a bit too much excitement.
“Yeah. Really.” She rolled her eyes and lightly shook her head at her ecstatic friend. “Now hurry up before I change my mind.” She watched as Connor wasted no time getting naked. He kicked his shoes off, reached down whilst kicking his legs up behind him to take his socks off one by one, he slipped his shirt off over his head tossing it aside, and after fumbling for a bit with his belt slipped his pants and boxers off his legs at the same time. By the time he was fully nude Macey had removed her pants and panties and was currently struggling to get her shirt up and over her chest. “Come on…!” She gave her top one good tug allowing the small bottom opening to to compress the soft mounds just enough to abruptly slip over. She was about to reach around her back and unclasp her bra when Connor climbed onto the bed with her and interrupted her.
“You can leave that on.” He didn’t wait for Macey’s confused retort as he lifted one leg over her and pushed her back by placing his hands on her shoulders.
Macey fell back onto her bed, with her head landing on her pillow and her breasts nearly flying out of her bra as they jumped up on her chest, slapping her face before bouncing back to rest on her upper torso. “Oof! Maybe warn a gal?!”
“Sorry…” Connor winced as he apologized but he didn’t let it slow his momentum down. Straddling Macey’s hips he shuffled up her body coming to a stop at her stomach which he sat down on.
With Connor looming above her, the warmth of her friends' bare skin against hers, and his already erect cock poking into the underside of her breasts Macey realized just how embarrassing this was for her. So much so that her cheeks grew warm with a blooming blush and she found herself tilting her head to the side to prevent from having to look Connor in the eyes. “Wh- what are you even doing?”
“I can’t just not play with these breasts!”
“Ah!~” Macey jumped as her friend's large hands were suddenly placed on the sides of her breasts and his meaty fingers pressed into her supple assets.
“Mind if I…?” Connor gave his friend's tits a light squeeze causing her to stiffen as she stifled another gasp.
“You already helped yourself to it,” Macey mumbled, “so go ahead…” Now what Macey was expecting was for Connor to get a bit more rough and handsy with her breasts so when she felt him snake his dick underneath the band of her bra and push it between her tits it caught her off guard. If their skin on skin touches were warm his dick, nestled between her fat sacks of sensitive fat, was hot! It radiated a particular heat that lit up the nerves of whatever skin of hers it touched.
“Woah-ho-ho!” Connor let out a short laugh as he pressed his crotch up against the underside of Macey’s tits. “You’re the first girl I’ve done this with where my dick didn’t stick out from the cleavage! Just how big are these things?!”
Macey felt her cheeks grow warmer at Connor’s juvenile remark but she still chose to mumble under her breath. “They’re U cups…”
“U cup?!” Connor exclaimed as he pressed Macey's boobs together, causing her to again stiffen and gasp at the sudden forces being applied to her chest. “It’s only been four months since you got out of the hospital and you were flat back then!”
“I know- Ah?!~” Another gasp escaped her lips as Connor began rubbing her tits up and down the length of his shaft. She hated to admit it to herself but the sturdy yet gentle grip he had on her boobs and Connor’s dick being squeezed and rubbed by her sensitive mounds felt surprisingly good. “You don’t have to tell me that.”
Connor continued to give himself a titjob in silence for a moment but his curiosity got the better of him. “How big did they say they were going to get?”
Macey tilted her head further to the side, the combination of such an intimate act with her friend and the personal questions she was being asked was already a lot but her audible heavy breathing and the fact she was actually enjoying this all was making her want to die of embarrassment. “I don’t know. The doctors said I’d either need custom sized bras at some point or they won’t stop growing until I’m bedridden because of them.
“Well,” Connor leaned forward causing Macey to glance up at him for a second before continuing to avert her eyes from him, “if you do become bedridden I’ll take care of you.”
The sheer shock from what Connor just told her caused Macey to, despite her entire face being flushed now, snap her head so that she was looking directly at him. “Sh- shut up! You can’t just say that…” She watched as he simply smugly smiled down at her and without saying a word he, without stopping the titfuck he was helping himself to, dragged his thumbs up and across her bra covered breasts and once they found the hard nubs of her nipples he pressed down on them. “Ngah-hah?!~” Macey’s eyes went wide as a squeal was ripped from her throat. “Hey!~ Don’t-~” With his thumbs pressing down on the most sensitive parts of her boobs he began massaging them in circles, rotating them in different directions so that the slight push and pull of her taut skin would squish and peel apart from one another at her cleavage.
Connor was mesmerized by his friend's face as she stared up at him with her eyes darting between looking directly at him and glancing off to the side. Though she was biting her cheek the occasional gasp would slip by as she’d buck her hips, causing her torso to vainly try to rise as his entire body pinned it to the mattress. “You’re so cute.”
“Eugh~ What?” It was Connor’s turn to turn his head away from his friend as Macey watched him try to hide his flustered state from letting that slip.
Connor quickly recovered from his sudden panic, turning his face which was as red as Macey’s was back towards her and pushing through his self-induced accidental embarrassment. “I said… you’re… cute… And I think I’m about to-?!” Macey felt Connor’s penis twitch a few times before a hot, sticky liquid began coating the inside of her cleavage. _“Agh…~ Fuck!~” _
“Shit!~ Too- Too rough!~” As Connor came he squeezed Macey’s tits as hard as he could, causing her to squirm underneath him. Her hands shot to his wrists to try and pry them off but with their size difference and the fact she felt weak from arousal she couldn’t get them to budge. “Connor?~” After a few more spurts of cum she finally felt Connor’s death grip on her poor tits loosen as he panted and came to.
“Fuck, your breasts feel amazing.~”
“Well…” Macey averted her eyes once again, “I’m glad you like them…” She tried to sneak a quick glance up at Connor to see his reaction but when she did he was staring intently down at her with a soft smile curling his lips as he caught his breath. “So… are you going to get off of me or-?” Macey’s eyes shot wide open as Connor suddenly leaned forward, placing his hands to either side of her head and lowering his face to hers so that they were merely an inch apart. His wide, chiseled chest pressed into hers squishing her soft mammaries between them.
“Why would I do that?” Warm puffs of air hit Macey’s face as he spoke. “I haven’t gotten to ‘tap it’ yet.”
Macey’s eyes wandered away from her friend's face, down his body to what was between his legs. He was already ready for another go and, now that it wasn’t hidden between her breasts, she could see just how hung he was. And the erect monster dick was pointed right for her pussy, like a battering ram ready to burst through the doors to her castle. She hadn’t inserted anything into her womanly folds save for a couple of her fingers and though she was scared of how Connor’s dick would feel inside of her she also felt incredibly aroused. And her vagina was making that fact abundantly clear to Connor as juices trickled out onto the bed creating a rather large wet spot between her legs. “I- um…” She stuttered. “J-just be careful. It’s my… It’s my first time.”