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Beach Bellies

Summary:

UPDATE MARCH 30 2025 - new art added to Chapter 3!

Having figured out how to make simulated pregnancy less burdensome, Amity’s pregnancy kink drives her to get knocked up by Luz while on their beach date. The two girlfriends spend all day teasing each other at Connecticut’s top beach, extremely horny but unable to do much about it … until they go back home.

Lumity pregnancy smut (and plenty of fluff). Luz and Amity have graduated high school in this fic and it says it in the story. They’re both age 18.

Notes:

For those just here for the smut:

Pregnant Amity masturbation in Chapter 1

Heavy makeouts in Chapter 2

Art and Lumity impregnation sex in Chapter 3

Graphic pregnant Lumity sex in Chapter 4

Graphic pregnant Lumity sex in Chapter 6

Chapter 1: The Triangle Earring

Summary:

Amity, pregnant with twins, makes an important magical discovery. After a quick masturbation session, she leaves for her beach date with Luz, but is delayed by Emira.

Notes:

This chapter contains: lactation and pregnant Amity masturbation

(See the end of the chapter for more notes.)

Chapter Text

Amity rubbed the side of her twin pregnant belly with one hand and cast a spell circle with the other. On the desk in front of her, a small black earring was surrounded by a pink glow. Amity unknowingly ran a hand over one of her babies right when it kicked, which made her smile. She manipulated the spell circle. If she just adjusted that part … 

Amity released the spell circle and the earring stopped glowing. She picked it up and slotted it into the vacant piercing on her right ear. It was her classic little black triangle earring, after all, and it perfectly matched the one in her left ear. She admired her reflection in the mirror. She was totally naked, with her large pregnant belly topped by two milky tits, and the earring completed her sexy look. 

Standing up, she felt the weight of her twin pregnancy hit her back and ankles. Simulated pregnancy, that was. She was only pregnant with blobs of Abomination juice. She and Luz had been expressing their pregnancy kinks this way for almost two months now. 

Her breath puffed out in disappointment, and she sat back down. Pulling the backing off her earring, she set it down on the desk and pondered it. Then, she turned to one of the dozen ancient tomes laying open around her. Musty books littered most of the desk space, plus a few on the floor. 

Amity and Luz both loved being simulated pregnant, and not just for the kinky sex. They adored the experience of pregnancy, to be so round and large and full. A spell to make the Abomination juice act like real babies in the womb had even allowed them to pretend that they were full of life. Both girls were desperate to get pregnant for real and carry each other’s babies, but they hadn’t even been out of high school for a month. Children would have to wait, and for now, they could simulate their pregnancies. 

But it was hard to be pregnant for extended periods of time. Anything longer than a few hours with one simulated baby left them tired and sore. Unlike the real thing, simulated pregnancy happened all at once, so there was no time to slowly build up muscle as the baby grew - they were thrust into full-term pregnancy without the necessary strength. 

So they’d just stuck to getting pregnant for sexy times or for an hour or two here and there, frequently getting sore anyways. They’d been increasing the size of their pregnancies too, and the extra weight just made the back and ankle pains worse. If they were going to enjoy larger pregnancies for longer periods of time, something needed to change. 

That was why Amity was inventing. They’d learned years ago that Glyph-induced muscle growth was a bad idea (it had taken four hours to stop Gus’ testosterone-fueled rampage), so enhancing their strength wasn’t an option. 

They’d also tried reducing the amount of Abomination juice that went into their pregnant bellies, making a thin shell of goop that was mostly full of air. That certainly gave a large belly without the weight, but it didn’t have the same inertia as a full womb. It was too easy to start and stop and turn. It reminded Amity of sticking a balloon under her shirt, except it was inside her womb. 

Many trips to the Forbidden Stacks of the Bonesborough Library later, Amity had a solution in mind. She wouldn’t increase muscle mass or reduce the quantity of Abomination juice. No, she had wild magic in mind. Specifically, the spell to create a flying carpet. 

Flying carpets had been banned by Belos because they were wild magic , but Amity thought that it was just a way to cut down on long-distance travel and communication. The art of creating such devices had been lost, but the spell had been preserved in old books. It worked, too - she’d accidentally enchanted Em’s doormat yesterday morning, which had bolted out the window to freedom. 

But what Amity really wanted was the spell that lifted a flying carpet into the air. If it could make a carpet and its riders weightless, then surely it could do the same to her pregnant belly. That’s why she was trying to enchant her earring to cast the weightlessness spell on her pregnant features. 

Amity spun a spell circle, wiping away the failed enchantment. She’d screwed something up and made the spell ineffective. It was very difficult to get right - so far she’d made her entire body weightless, but that wasn’t the point. She needed it to target her pregnant features somehow. 

That reminded her of something Luz had said. Back when they were first developing the glyph combos for pregnancy simulation, her awesome girlfriend had mentioned that the body naturally put a magic shield over its pregnant womb, to protect the baby inside from feral spells. The glyph combo did the same thing. 

Amity swirled her finger, casting another ring of pink light. What if she just tweaked the spell like that , to make it attach to the magical shield around her womb …

The spell circle winked out. Amity put the earring in, took a deep breath, and stood up. 

Pure laughter poured from her mouth. Her pregnant belly weighed nothing! She took a few steps around, soaking in the blissful absence of pain from her ankles. Her back still hurt from her big milky boobs, which were four times their original size, but that was nothing next to the weight of a full-term twin pregnancy. 

Amity jumped in place, hopping on her tiptoes with glee. Normally her pregnant belly would have weighed her down, but not now. Her boobs , on the other hand, were far too large and milky to appreciate being bounced up and down like that. 

“Ow!” she hissed, dropping flat on her feet and cupping her breasts with her hands. Milk started to leak out of her nipples, tricking between her fingers. 

As the pain slowly ebbed away, it was replaced by arousal. Lactation was almost always an erotic experience for Amity, and now she was touching her nipples. She could feel the stiffened nubs poking the palms of her hands, wet with milk. Before she could get too turned on, she quickly pulled her hands away.

Her tits were still leaking milk. If anything, the slight wetness in her pussy only made them flow a bit faster. Amity sighed. As much as she loved expressing milk, there was a time for it, and that time wasn’t now. 

A pair of glyph papers inside her desk drawer solved the problem. They faded to dust as soon as she pressed them against her nipples, and the milk vanished. It was still flowing, but the Glyph magic was teleporting it away to donation jars at the Bonesborough Hospital. Now, her unwanted milk could go to feeding hungry babies. 

“New note,” commanded Amity. 

On the floor next to her desk, a small Abomi-scribe lifted its pencil and paper in crude hands. 

“Success!” announced Amity. “I just had to make the spell target the natural magic shield around my uterus. My belly is completely weightless,” she said, turning side to side rapidly, “but still has the expected mass and inertia.”

The Abomi-scribe scribbled dutifully. 

“Unfortunately,” continued Amity, “the effect does not transfer to my breasts, butt, or any other part of me enhanced by pregnancy. I’ll have to wear a bra for now. New priority: figure out how to make the effect apply to all my pregnant features.” 

The Abomi-scribe gurgled and looked at her with its glowing green eyes. 

“End note,” she ordered, a little exasperated. She really needed to make herself a new scribe. The current one never knew when she was done dictating a note.

Satisfied, Amity sat back down. She quickly drew the spell formula that had worked, then leaned back in her chair. She was kinda horny. Pregnancy always turned her on, and groping her own titties like that had only increased the heat in her core. 

Amity swirled her finger and a glob of Abomination juice slithered out of a pot beneath her desk. It shaped itself into a bullet vibrator. Another spell circle set it buzzing, and she shuffled side to side, spreading her legs. She grabbed the purple vibrator from where it floated in midair and reached her other hand down to her pussy, fingers easily finding her clitoral hood and pulling it back. 

Her thumb accidentally brushed against her clit and a shock of pleasure ran through her body. Her lovebean was engorged with blood due to the pregnancy and was extra sensitive. Biting her lip, Amity slid the vibrator between her twin pregnant belly and her thick thigh, breath hitching as the buzzing sensation travelled through her firm pregnant belly and into her core. 

It was so much easier to fit her hand between her belly and thigh while sitting down now. Previously, she’d had to lift one side of her pregnant belly up. Now that it was weightless, only its natural tight firmness resisted her questing hand. That wasn’t nothing - pregnant bellies were designed to keep their shape after all, to avoid harm to the babies inside - but it was much less than the same firmness plus the weight. 

The tip of the vibrator brushed against Amity’s clit, making her gasp and jerk her hips forward involuntarily. Normally they would have been weighted down by her pregnant belly, but not now. She felt her pubic mound pressing into the underside of her belly, enjoying the soft-yet-firm pressure there. 

Amity took a look around. Nobody was here. The door was locked. Her siblings were unlikely to peek in through the window, but she wasn’t taking any chances. Fighting off the urge to jam the vibrator against her swollen clit, she summoned an Abomination to close the curtains. 

Satisfied that she was private and secure, Amity pressed the tip of the vibrator against her clit. She gasped softly as the buzzing sensation filled her lovebean, swollen with pregnancy hormones. The heat in her core built along with the wetness in her pussy, and as she began a slow rhythmic pressure, she got increasingly turned on. 

Amity squirmed in her seat as she continued to stimulate her clitoris. Her sex juices were really flowing now, dripping out of her cunny and pooling underneath her on the chair. The Abomi-cushion didn’t absorb them, and before long, she was sliding from side to side as she squeezed her thighs together, slipping on a film of her own natural lube. 

While Amity continued to stimulate herself with the vibrator, her other hand moved up to her breasts. She groped her own milk-swollen titties, sending little bolts of erotic pleasrure through her body. Her nipples had already been stiff, but when she brushed her fingers over them, she found them almost as sensitive as her engorged clit. They were certainly wetter too - both of her darkened nipples were steadily leaking milk. Touching them had accidentally collapsed the glyph portals that took her milk away, and now the warm liquid trickled down the round curves of her boobs and onto her belly. 

Pulling the vibrator off her clit for a second, Amity dipped its buzzing bullet head into her soaked snatch. Once it was thoroughly coated in her love juices, she put it back in its original spot. Groaning out loud, she ground her hips against the buzzing toy, the sudden sensation almost bringing her to orgasm. 

Continuing to tease milk from her full breasts with one hand, Amity deftly maneuvered the vibrator with the other. She only needed three fingers to hold it. The other two slid around her plump labia lips as she teased herself, lubed by her plentiful sex juices. 

Amity started full-on humping the vibrator. “Hnng. Hnng. Hnng,” she grunted as every thrust pumped pleasure into her. 

The heat in her cunny built and built, until a tug of her nipple sent it spilling over. Amity came, eyes clamping shut, biting her lip to keep from moaning. Her pussy squirted slightly onto the fingers tracing rings around its entrance, and her legs jolted with pleasure, jerking her across the sex-stained seat. Milk squirted from her jiggling tits. 

Amity kept stimulating herself as she came, triggering a second orgasm a few seconds after the first one finished. Her back arched, thrusting her pregnant belly out in front of her until it smacked into the edge of her desk. The sudden pressure was funneled through the Abomination juice that filled it and went straight to her core, increasing the power of her orgasm. Her toes curled as though trying to grab on to the carpeted floor. 

The two fingers Amity had been using to tease her nether lips, now soaked with squirt, slipped into her lovebox. “Hnnnnnng!” moaned Amity, throwing her head back with pleasure as she came again. 

With fingers pistoning in and out of her juicy snatch and the vibrator pressing on her swollen clit, Amity was double stimulating herself. Already she felt a fourth orgasm building, ratcheted a little higher by every pump of her hand. She tugged her nipple in the same pattern, feeling the heat of an impending orgasm grow in her breasts as well. 

Amity’s quadruple-size boobs sprayed milk as she came again, this time centred in her breasts instead of her pussy. Her hips bucked wildly as she ground her weightless pregnant belly into the edge of the desk. Her knees bent as her ankles hooked around the legs of the chair, shivering with erotic pleasure. 

Amity pulled the vibrator away and turned it off, sliding her fingers out of her cunny. She panted, needing a quick break. A drink of water would do her a lot of good right now, but the glass on the desk was empty. 

The warm pitter-patter of breastmilk dripping on the top of her pregnant belly gave her an idea. She squeezed one of her tits roughly, squirting out a good quantity of milk. Before it could be magically regenerated, she angled the now-softened boob upward. Leaning her neck down, she was almost able to get her nipple into her mouth, but she couldn’t quite reach. 

Her boob was too firm. Simulated pregnancy increased breast size, but it kept the original consistency of the tit. Amity’s boobs hadn’t had enough time to become saggy in her 18 years of life so far, so as much as she wanted to suckle from her own teat, it was impossible. 

Frowning in disappointment, Amity cast a spell circle to summon some Abominaton juice from a vase. After moulding it into a cup, she held it under her leaking tit and waited for a decent amount of breastmilk to accumulate inside. 

Once it was half-full, she raised the Abomi-cup to her lips and took a drink, feeling an erotic thrill run through her at the thought of drinking her own breastmilk. The taste and texture were virtually identical to Luz’s breastmilk, which she had drunk plenty of in the past. But the knowledge that it was her own made it exciting in a different way. 

With her throat wet again, Amity tossed the Abomi-cup back into the puddle of sludge from whence it came, letting it dissolve. Then, with a fresh wet heat building in her pussy, she reactivated the vibrator. 

Amity was about to touch the vibrator’s tip to her swollen clit when a loud ringing sound suddenly blasted against her ears. “Gaah!” she shouted in surprise, chucking the vibrator across the room and sitting up straight. She felt herself blush as she realised it was just her scroll-phone. 

Eyeing the vibrator (it had gotten stuck in a potted plant), Amity picked up her phone and silenced the notification. Right, she had a date with Luz today! A real slice-of-life beach date!

Amity sighed in disappointment. Slaking her lust would have to wait. She couldn’t stay pregnant for the whole day - she’d go insane with horniness. A nullification glyph ended her simulated twin pregnancy, letting the Abomination juice leak out her moist pussy. Her breasts shrank, her butt thinned out, and her thighs slimmed down. The flow of breastmilk stopped immediately. 

After that, it was quick work to use a shower glyph and put on an Abomination-coloured bikini, seeing as she was already naked. The skimpy swimsuit wasn’t just coloured like an Abomination - it was made from the purple slime, which made cleaning and resizing easy. A sundress completed the outfit, and she grabbed the beach bag she’d packed last night. Then it was out the door. 

Amity closed her door and spun a spell circle to engage the Abomi-lock. The door’s goopy innards gurgled, and a deep clunk told her that the door was locked. She turned around to walk down the hallway and found herself nose-to-nose with her sister. 

“Aaaah!” Amity shouted, flinging herself backwards and landing on her butt. “Em!” she said in annoyance as she leaned to the side and rubbed her sore tailbone. 

“Oh Titan, sorry Mittens,” said Em. She reached out a hand and pulled Amity upright. 

“Why do you always have to do that to me? Why can’t you stand three feet away like a normal person?” Amity complained as she brushed herself off. She hadn’t gotten dirty of course, Blight Manor was kept spotlessly clean by a team of Abomi-janitors. 

“Maybe it’s because I looooooove my baby sister!” Em exclaimed, throwing her arms around Amity. 

“Get off me,” Amity huffed. She shoved Em’s arms away. 

“Okay, okay,” said Em. “Titan, I can’t show a little affection for my little sister?”

Amity rolled her eyes. “What do you want, Em?”

“Well, seeing as Vines and I have those breast expansion and lactation glyphs now, we’re gonna try something new,” Em said cheekily. 

“What now? Is she gonna triple the size of your tits, make them all milky, and lead you through the marketplace with your nipple chain?” Amity sassed. 

“Amity!” Em shrieked. “Nothing of the sort. And she’s the one getting tied up this time. Though I have to admit, that sounds kinda hot …” She blushed.

“Then what do you want? Hurry up, I have a beach date with Luz,” Amity said, hefting her towel bag. 

“Can I borrow an Abomi-breastpump?”

Amity blinked. That was surprisingly vanilla for her sister. “Sure. I have one downstairs in my lab.”

“Is it safe to use?” Em whispered conspiratorially. 

“What? Of course it’s safe to use. Me and Luz use it all the time. So make sure to sterilise it before and after you use it!” she emphasised. 

Em shrugged. “I have no idea what you do down there. For all I know, it’s a prototype that might bite Viney’s nipples off.”

“Why would I ever design something like that?” asked Amity. 

Em shrugged. “We’re all into weird stuff.”

“Weird stuff like getting fake pregnant, being led around by a nipple chain, and wearing assless chaps, not weird stuff like having appliances maim us,” said Amity. “Do you want it to bite your nipples off?”

“No! I was just making a hypothetical,” said Em hurriedly. 

“Then go downstairs and grab it off my workbench. I was going to try and modify it to vibrate while it sucked, but I got sidetracked.” Em didn’t need to know that she’d gotten sidetracked by researching flying carpets for her earring. Em still thought her doormat had been stolen by Viney’s gryphon, Puddles. 

Em’s face pinked. “Ooh, sounds hot.”

“Yeah, I still haven’t figured that function out yet though,” Amity said again. 

Em shrugged. “I can borrow it again once you do. Thanks Mittens!” she cried, running a few steps to the stairs and sliding down the bannister. 

“Make sure you sterilise it before you use it!” Amity called after her. 

There was a clunk and a pained “ow!” from Em as she slid off the end of the bannister and smacked on the floor. Em stumbled to her feet, rubbing her knee where she’d smacked it on the floor, and headed for the basement stairs. 

Amity sighed. Why was her sister like this? Shrugging to herself, she started walking down the stairs, on course for the Owl House to access the portal door.

Notes:

This turned out to be a very long fic - barely shorter than Health Class Final Exam. It will likely be the third longest of this series. Get ready for multiple sex scenes!

Got ideas for things I could write in this series? I'll take them! Leave a comment on whatever chapter was published most recently. If I like your idea, I might use it and credit you.