You

You didn’t even think. There was too much going on. Was Ava pushing her head down? God that felt amazing. The house is on the left up here. Where did you leave your phone? Are you… You.

“...Doing?”

You slammed your foot on the break. Your balls gurgled, expanded, then shrunk. Your body rippled in your chair. Your chest arced forward, straining out of the shirt. Your mouth opened but no sound came out. Drool pooled in you mouth. Your leg tensed, pressing the brake even harder. Your cock flexed. You could swear. Swear that it’s growing. Getting bigger. Your balls expanded. Got heavier. Your body was on fire. You’re so full. Full of something. Something big. Something coming.

You screamed in ecstasy, and the car went white.

Cum blasted from the tip of your cock like a fire-hose. Shooting over the steering wheel, painting the front window. The cum slung under the steering wheel, splashing against the carpet, your feet, and onto the pedals. It careened out of your crotch, showering the roof of the car, splashing back down onto your hair. You tried to turn your hips, and succeeded only in showering your sister in seed. Painting much of her purple hair white, and getting some down her surprised open mouth. Her uniform was stained white like snow, and her seat quickly gained puddles of cum. Ava, thinking quickly, ducked her head to avoid the splashback that painted the back seat. Windows were coated. The dashboard was gooey. And the front window was glazed with enough cum so as to be unusable.

You sunk into your chair, utterly spent. It felt like your brain and lungs came out with the rest of your cum. You pulled in a long, deep breath, as a dollop of cum landed in your hair.

"Fuck me… my own God damn brother…" Beth said, reaching out a finger and sliding some cum off the window. She stuck it in her mouth, swirling it around in her cheeks.

You could see her shoulders relax, just like yours had, and she too sunk into the seat. She reached for her crotch, but then her eyes flicked back to you, and she moved it away.

"You know you can get off, you certainly got me off," you said, barely even moving your head to look at her.

"Ew, no thanks. Sucking a perfect cock is one thing, but I'm not masturbating in front of my younger brother."

"It's a pretty amazing cock, isn't it?" Ava said, reaching her arms around you from the back seat, and kissing your neck.

"So, uh, how am I gonna clean all this?" You asked, gesturing around at your glazed donut of a windshield.

"I could always liiii… ahem," Beth mumbled her way into silence, but you could see her fidgeting with her slacks.

"You should probably call a cleaner or something," Ava said, flicking a bit of cum out of your hair, "I don't think we can clean this with some towels."

You nodded, and then shook your head, "no way can I afford whatever kind of therapy a cleaner would need to deal with this. I'll clean it tomorrow, why don't we just get out now and walk home."

"Sounds good to me," Ava said, unwrapping her arms. You heard the car door open and shut behind you.

"I'll, uh, stay here," Beth said, gesturing to the sticky mess.

"You got it. Don't slip on it and break your neck now," you replied, to which she flipped you off.

You got out a few tissues from the center console, and wiped away enough spunk to get to the door handle. It was slow going, what with how thick and viscous your new cum was. It was like scooping up wet cement. Was this going to happen every time you came? Shit, you hadn't even thought of that, what if you couldn't stop this? Everything aside from the questions had been out of your control, a passive powerup you couldn't even predict. What if-

"Yo, earth to string bean."

You felt a light punch in your arm. You looked around, realising that you'd already walked down the street, with Ava in tow.

"You alright?"

"Yeah, just… wow. That was a lot of cum."

"Yeah, you're a regular old fire hose," ava replied, giving you a smile, "so did you get a question?"

"Yeah I did. Did you think all that cum was natural?”

Ava’s smile slides off her face, and her brow furrows. She looks back at you, and just rubs her temple.

“I mean, I remember you cumming less before,” she began, choosing her words with care, “but I just… why does it feel so normal? I’ve never seen anyone cum that much, but because it’s you I accepted it. I still accept it. I can’t shake the idea that isn’t just how your body works.”

“Weird,” you replied, your own brow furrowing in concert, “so no-one notices this stuff, but it didn’t change how my body used to work… wait, were you that enamoured with my cock when I first got undressed?”

“Huh. No, I wasn’t,” she shook her head, “but hell, it’s an amazing cock now. I’ve seen what it can do.”

She rubbed the side of your leg through your sweatpants, and you felt your cock twitch in reply. You grinned down at her, but then your face fell a little.

"Wait, that's not good though. What if I cum like that every time?"

"Oh shit, true. Maybe the magic will protect me if it goes inside?"

"I really don't want to test that. And besides, what if you get pregnant?"

"Huh," she said, as the two of you reached your front door, "okay, well, you're gonna need to solve this. Maybe you should fuck your sister again?"

"What? Why? Wouldn't it be dangerous for her too?"

"Well, she seemed super into it right? I've been thinking, maybe this cock is giving the women you fuck what they want."

"My mum wants to lactate?"

"Hey, not my call. I'm just seeing a trend. I got my biggest fantasy in one cute stringbean, and she seemed like she couldn't wait to cum her panties under your fresh coat of paint."

"She's dating a girl though."

"So? Bi people are real, and they don't stop liking cock just cuz they found some clams to eat."

"Oh, gross," you say, smiling anyway.

The two of you wandered into the house, and the smell of something meaty cooking hit you both immediately.

“David, is that you?” your mum called out.

“Yeah mum, we’re back. Beth’ll be in in a minute, she just forgot something in the car,” you replied.

“Oh good, dinner’s just about ready.”

You looked down at your clothes, still with flecks of cum splattered over it. Ava had been luckier, but she still shucked her jumper off and bundled it up in her arms.

“Uh, ready ready?” you called out.

“Yes darling, ready ready.”

“You think she’ll be ok with it?” you turned to Ava, now at a whisper.

“I mean, she’s already seen it right? Can’t be that big of a deal at this point.”

“I mean yeah, but it just feels so fucking weird.”

“Chin up string bean, this is your life now,” she patted the side of your cheek, giving you that same cheeky grin, “I mean hey, maybe the magic made it normal for you to be covered in cum.”

You grimaced, not wanting to think about the implications of that. You turned back to the kitchen, “hey mum, Ava’s here, is it cool if she has dinner too?”

“Oh Ava, becoming a regular around here I see!” your mum said, “of course, there’s always more to go round.”

“Thank you!” Ava called forward.

The two of you walked into the kitchen to see your mum. Those gigantic new tits were wrapped behind a faded white T-shirt with some eighties band logo emblazoned on it. She had tucked the shirt into her jeans, pulling it taut around her bust. It looked like two exercise balls hiding in a sheet. But the way they bounced with each of her movements made it clear as day that they were real. Thanks to the way the material was pulled so tight, you could see the way her fist sized areolas bulged forward, with her fat nipples sitting atop each.

You and Ava sat at the bench, and Ava began engaging your mum in some small talk. When you were able to rip your eyes away from the bust you created, you saw the lamb meal spread out before you. You were about to say something when you sister walked in.

"Oh hello Be- oh my, bit of trouble with a paint can?" Your mum asked.

You turned in your chair to see Beth, cheeks burning. Her purple hair, her jacket, her uniform, and even her slacks were flecked with something white. Sticky, white, and slowly falling off of her.

Your cum.

"Uh, yeah. I'm gonna go up," she said, gesturing at the stairs behind her without looking at anyone, "go up. To shower. Because I need to get all the paint off. In the shower."

"Oh nonsense, come eat before it gets cold. You can have a shower later," your mum said, gesturing at the empty chair, "I put my heart and milk into this meal, I want you to at least enjoy it properly."

Beth just froze in the doorway. She looked at the floor, then back to the hall, then at the table, and for a fleeting moment, right at you. Without a word, she walked over, and took a seat beside Ava.

The four of you began to eat. Ava was asked more questions about her family, her background, what she was studying (neuroscience), and her favourite meal. It was subtle, but you knew your mum's tactics. Ply them with simple small talk in order to open them up, ask a throwaway question about favourite foods, and then… Bam! The next time they showed up at the house, she'd made the meal. From the sounds of it, Jollof rice would be tomorrow's dinner.

At some point, Ava stood up and excused herself, rushing to the bathroom. Your sister turned to you, giving you a look she only used when she wasn't interested in jokes. You didn't see it much.

"Dude. What happened in the car?"

You and your mum both looked at her.

"What… Do you mean?" You said, looking at the flecks of cum still in her hair.

"I mean her," she said, jerking a thumb at where Ava had just gone, "I know she's your first, but what she did wasn't normal."

You just stared at her, mouth still open. What had Ava done? You could barely remember anything beyond that white explosion.

"Ok, ok, what the hell happened?" Your mum piped up, resting her hands on her hips. This, of course, caused her massive tits to jiggle like water balloons.

"Okay, so you know David's got an amazing cock right?"

You felt your entire body go bright red. Why. Why had that come out of your sister's mouth. You wanted to pull your hair over your head and gag yourself so you wouldn't scream. You wanted to sink straight into the floor. Your sister, telling your mum, about your "amazing"-

"Yes, I'm aware," your mother replied, nodding her head.

"Yeah, so I was sucking it in the car."

"That's very dangerous Ava. I understand, but you shouldn't distract the driver like that."

"Yes mum, got it. Anyway, I was sucking it, and then he yells out that he's cumming. And what does she do? She grabs the back of my head! Pushed me down!"

A dark look passed over your mother's face, and you just stared at your sister. The concern for one, without even acknowledging the much more insane premises… you were never going to get used to this magic.

"Thank God I got off before he blew," your sister said, before turning back to you, "so? What the fuck?"

"She touched me too," you mum said, idly readjusting her massive bra, "right when David was fucking me on the counter. I just couldn't believe it, I hoped it would be a once off."

"No fucking way, you too?" Beth said, before swinging back to you, "dude, you have to get her under control. How long have you two been going out?"

"Uh… two days?"

Your mother shook her head, "the entitlement to other people's bodies… I can't believe it. Not even your father was so brazen."

You just sat there, looking between the two of them. The lines in the sand were all over the place now, and you couldn't keep up.

"So, uh, should I stop… fucking you both?"

"No darling, that's not-"

"NO!"

Beth had leapt out of her chair, sending her cutlery clattering to the ground. There was a beat of silence.

"Ah, no. No don't do that, just… just talk to her," your sister said, bending down to pick up her cutlery.

"Everything alright?"

You looked over to see Ava peeking her head around the corner.

"Nah, all good, just lost control of the cutlery," Beth said with a lopsided smile.

"Did you find it alright darling?" Your mum asked.

"Oh I was fine, the only place I get lost is Twitter," Ava said, jumping back into her seat.

The three of them carried on, chattering away, and the meal vanished before you all knew it. You stayed silent for much of it, focusing on getting your head straight first. Before you knew it, the others were getting up from the table. You went to leave, but you Beth stopped you.

"Last one to leave, first to do dishes," she said with a grin, shoving you back towards the sink.

You grumbled to yourself, pulling on the gloves and running the tap. You were interrupted by a pair of fingers sliding up your sides. You wriggled in their grip, before looking down to see Ava with a massive grin.

"Hey there, dishwasher."

"And what can I do for you?"

"Well, I didn't want to leave you all alone."

"Am I in danger?"

"Of course! What if some horrible dish soap monster attacks? Why, you'd be unable to fight them off."

"Oh woe, to be so weak," you chuckle, grabbing a dish and dunking it into the water.

"Exactly. But rest assured, I am here," she said, whipping out a dish towel.

She flicked it around like nunchucks, making the kind of sound effects you'd find in a Bruce Lee movie. You both just laughed, and settled into a routine. Before you knew it, everything had been washed and dried.

"Oh valiant hero, what prize dost thou desire?" You ask, throwing the gloves over your shoulder.

"Hmmm, I don't know, it would have to be something very… very special," she said, sliding up closer to you. Her hands weaved up your thigh, before resting against your bulge.

"Oh I see," you said, lifting an eyebrow.

"Not yet you don't," she grinned, "I want you to fuck them. Like the stallion you are. While I watch."

She beamed up at you, and began to rub her body against yours. You could almost feel her purr like a cat. But you think back to the conversation from earlier, and a twinge of worry slips into your mind.