An Explosive Combination

As a stallion, your sessions had a very finite beginning and end for sex. But once those two mares got going, they could go for a long, long time together. Fun was fun, watching from outside the trailer windows while your mother, Delta Vee, knocked tacos with your twin sister, Apogee.

But the desert was still very sunny and hot outside. And after firing off your tapioca shotgun for the third time, you were starting to get genuinely dehydrated. To say nothing of the fact you had barely eaten anything that day. And even if you could go back inside the trailer right now, you were at a loss to think of anything even viable to eat in the fridge. The weekend was when food shopping usually got done but lately your mother has been a bit... distracted.

You watched them make the double-headed dildo vanish inside them as they mashed their marehoods together. Apogee squatted over Delta on the mattress, practically folding her in half like a wrestling move to grind her pussy against hers. Your stomach growled loud enough to make you fearful that they might have heard it over the sticky wet noises of their tribadism.

You forced yourself to tear your eyes away from the scene and pull up your shorts. Just a quick trip to the food mart. Just a quick trip and you'd be right back.

...

Flying with wings this stiff proved to be difficult.

The flight home was easier. You barely made it out of the store before you chugged down one of the beverage bottles. Between that and the prepared sandwich, you felt revitalized. But the entire trip had already taken much longer than you had expected. You hurried home with your bags of groceries.

Though you arrived home when you had promised, you still approached the trailer silently. A quick peek into the bedroom window confirmed that indeed, they were both naked, napping, and draped over one another with Apogee nuzzling Delta's chest pillows.

Seemed a shame to disturb them. You silently entered the trailer and closed the door to Delta's bedroom before you unpacked the groceries with all your stealth. There wasn't many good things you could eat without running the microwave which sounded like a jet taking off. The bag of chips you brought home was supposed to be for everyone but...

You settled down in the dining booth and crunched the chips in your mouth as quietly as you could while you waited for the inevitable. You didn't have to wait very long.

The bedroom door creaked open just enough for Delta to shuffle out in nothing but her shorts with her eyes only half open as she made her way to the bathroom.

"Hey," you greeted. Startled, Delta yelped in surprise. A billiard ball suddenly fell out of her shorts. Your eyes followed it as it rolled across the uneven linoleum before you looked back up at her. "I think you might need to chew your food better."

"You're home early," she said before looking to squint at the clock. "Oh."

"Mhm. Where's Apogee?" you asked.

Delta leaned surreptitiously to pull the bedroom door shut. "Uh... she's uh... somewhere else."

"Okay." You resumed eating your chips while you played on your phone, pretending to not care.

Delta grabbed the door handle again. "Actually, I uh... need to go do something..."

You didn't even look up from your phone as Delta slinked back into her bedroom. It was hard to not laugh. The thin panel door did nothing to muffled their hushed voices.

"Apogee, wake up! Get dressed!"

"Wuh?"

"Get up! Get dressed! Aileron's home!"

"Oh."

You have to get out... No not that way, he's out there! Go... out the window."

The scraping of rusty metal on metal resounded through the trailer frame as Delta pried the entire pane out of the frame.

"Wah?"

"Here, I'll help you up."

There was a series of very un-sexy grunts and sounds of struggling before the clatter of the junk outside that Apogee landed on.

"Eww! I think I just touched bird shit."

"Shut up and get out of here!"

"Where?"

"Somewhere out back!"

Metal scraped loudly again ad Delta put the window back into the frame. A minute later she walked out of the bedroom nervously with her shirt on backwards. You barely gave her a second glance.

"Uh, now that I think about it, I think Apogee might be somewhere out back."

"Okay."

"..."

"..."

"Anyways, I'm gonna... yeah..." Delta walked back inside the bedroom and closed the door. You heard the hurried commotion of her putting toys away and trying to make the room not look like the site of an orgy.

You put your phone in your pocket and walked outside. Apogee was exactly where you expected her to be, sitting on the infamous couch in the hangar, grinning wide enough to tie her lips behind her head.

"Hey!" she greeted excitedly with her characteristic enthusiasm.

"Hey," you greeted back in an even tone. She opened her mouth- "Yeah, I can tell," you said before she could unload everything. "It's pretty obvious." You pointed at her inside-out shorts with her panties stuffed into a pocket. Without skipping a beat she hopped up and dropped her shorts right in front of you with all the subtlety of a grenade. She flipped them right-side out and pulled them back up without bothering with her panties. Then she sat back down where she was on the couch. You sat down next to her. "And I know I'm one to talk," you continued, "but you reek of sex."

"Hmf. Wasn't this the plan?" she asked.

"Yes..."

"But..?"

"But now what?" you asked her. "Honestly, I never thought it would get this far. I didn't even think you liked Mom that way- or fillies at all, until just the other day. I just figured that this... with me and Mom, and me and you... would just be until something changed with one of you. Or me. And that would be that."

"You want this to end!?"

"Of course not! This has been the best week of my life! I mean, it started out as the worst, what with Rose and all. But now, yeah, this is amazing, and I love it."

"But..?"

"But I'm just being realistic, Gee. I hope for the best. But experience, unfortunately, has taught me to prepare for the worst. Things change. People change. I hope for the best. I hope this can last forever. But... I can't expect it to."

"Why not?"

"Apogee, do you not already see the house of cards we're living in? Mom doesn't know about us. She doesn't want you to know about me and her. And she doesn't want me to know about her and you."

"How did you-"

"Gee, all of Las Pegasus probably heard you trying to climb out of her window. She obviously doesn't want me to know."

Apogee shrugged. "Okay, yeah."

"And we're going to have to tell her about us at some point if this is ever going to work long-term."

"Yeah," she sighed.

"So how are we going to do that?" you asked her. "We can't just out and tell her."

"Even after everything that's happened?"

You shrugged. "I'm just saying, I would have been shocked, and even a little upset if I found out about you and Mom without knowing it was going to happen ahead of time like I did. I mean, remember when you first found out about me and Mom?"

Apogee frowned. "Yeah..." Her frown vanished. "Wait, what if I talked her into me seducing you together with her?"

The idea made your dick so hard so fast that it actually hurt. "As much as I love it, I can guarantee that she would try to talk you out of it."

"Okay then, what if you talked with her about including me in your little sessions?"

"I'm pretty sure she would kill me on the spot. She knows the consequences of having sex young. I don't think she'd like the idea of you fucking any colt. Least of all me. And besides, you know how... possessive she can be. Everything else aside, I don't think she'd like the idea of sharing me."

Apogee scratched her head. "There must be some way."

"..."

"We could..." she started to say. "Uh, no..."

"What?"

"No, it's crazy."

"Apogee, we are siblings who have been fucking our mother and each other! I'm pretty sure we left sanity behind a long time ago. So just tell me your idea."

She told you her plan.

"Okay, yes. That is crazy," you agreed. You scratched your chin. "But... that might be the only way to get all of this to work."

The foods you brought home from the store were meager ingredients, but it made for a dinner that was a sumptuous feast for you to cook compared to the usual fare in that trailer. Your mother was only too happy to watch you work at the kitchenette stove from her seat next to Apogee. You served them each a plate before you made your own and sat down with a can of soda and a bowl of fresh, chopped pineapple for yourself. Delta walked over to the fridge and then came back to the table empty-handed.

"You forgot the beer," Delta muttered as she ate.

"Sorry," you apologized. "You can survive a day without it, can't you?"

You could hear her grip on her fork tighten. "Yeah. I'm fine. I don't need it! I'm not a fucking alcoholic!" You exchanged a nervous glance with your sister and hoped for all of your sakes that she was right. Delta grabbed the cigarette pack out of her shirt pocket, looking at the last few sticks inside before sliding one out into her lips.

"I thought you said you were going to quit those," you said.

"I said I'd try to cut down!" she growled at you across the table before stuffing it back into the pack. "Fine! I'll save it for after dinner."

~

Since you cooked, Apogee offered to do the dishes while Delta stepped outside. You followed after her as she stood a little ways away from the trailer. Her lips pulled a cigarette out of her pack again.

"I could give you something else to smoke," you teased, giving her butt a dry hump.

"Ha. Ha," Delta deadpanned as it dangled in her mouth, before she ignited her lighter. The cherry of the cigarette glowed brightly as she took a deep drag.

"... I want to be able to kiss you later," you said.

She fumed. "Fine! I'll brush my fucking teeth later, okay!? I wasn't bullshitting about trying to cut down. I'm trying to make this my last pack. Fuck, you're worse than your father!"

Her words made you physically recoil.

Her angry expression softened. "I'm sorry. I didn't mean to say... that. But he was bad about getting me to quit before we finally split." She sat on one of the fifty-five gallon drums labeled 'flammable.' Her eyes followed yours. "Don't worry. They're empty."

You sat on the one, upwind, next to her.

"Mom... I know Dad was... What he did was... He... I think he still cared about you, in his own way."

Delta chuckled. "Tell yourself whatever you need to if it helps you sleep better. He just didn't like my lips tasting like an ashtray." She saw your raised eyebrow. "Either set of lips."

You looked down at your hands, wondering how, at all, you were any different. "Yeah, but I... Why are you actually trying this time? For me?"

She gave you a look that was equal parts serious and sultry. "Because you actually like kissing both," she said with a smirk. "Oh sure, he liked getting sucked off, but fuck if he could be bothered to return he favor more than twice a year!" She clearly miss-read your look of confusion for curiosity. "My birthday and our anniversary," she added.

"Really? Because I actually think it tastes pretty good."

She pulled the cigarette from her mouth and exhaled a cloud of smoke up into the sky before she glared at you. "Knock it off, Aily."

"What?"

"I don't need you to tell me how fucking good my pussy is. I'm the one who wears it. I know how good it is. It's not my fault that your father's taste is shit! I keep my pussy good because when I kiss a colt after sitting on his face all night, I want to taste it! But you know what's on my mind right now? It ain't the pussy in my shorts. It's you, being on my ass about my smoking, like a fucking hemorrhoid!"

"I just care about your health is all, Mom." You told her truthfully. "And... I'm just saying... it does taste better."

"You should feel lucky that you get to taste it at all!" Delta snapped before she just sighed and looked up at the night sky. "Fuck."

"What?"

"I can't believe I'm having this conversation with my own kid- my own son."

You shrugged. "I know."

"Look, I just need this right now," she said, sucking down another lung full of nicotine. "You can't imagine the kind of day I had dealing with your sister."

Oh, you could imagine all right.

"Was it bad?" you asked genuinely.

"No, it was just... She's just a lot, you know?"

Your mind flashed with memories of your twin sister gripping your mane and shoving your face into her pussy like you owed it money.

"Yeah Mom, I know." Delta chuckled dubiously and took another drag. "Hey Mom, do you think that maybe Apogee is going through the same thing you are? What with it being almost summer season and all?"

She scoffed. "She has her cutie mark. The fuck you think!?"

"Right." You blushed. "Maybe she needs... maybe I could-"

Delta glared at you. "Alright, I'm gonna stop you right there, Casanova. Just because you and I have been... you know, doesn't mean you need to start working your way down the family tree. Apogee is just fine, for your information! She has somepony to deal with that."

"Oh?"

"Yeah."

"How-"

"We talk, you know!" she said. "She's entirely capable of getting relief from... not you! Fuck! The last thing this family needs is another teen pregnancy!"

Well, that went about as well as you expected. You looked away in shame while she smoked.

"Aren't you happy with... what you're getting!?" she asked.

"Yeah..."

"But.!?"

You looked at her again. "It's funny... I was going to ask you something similar."

Her glare softened. "I am happy."

"You don't seem like it."

"Everything else aside, I am still your mother. Both of you! And whether of not you choose to believe it, I do give a shit about you both. And that supersedes everything else. Even my own happiness."

The corner of your mouth smiled. "I do believe it."

"Great." Her eyes crossed as she looked down at the remaining stub of her cigarette. "Now can you please fuck off and let me enjoy the rest of this thing in silence?"

Your smile remained as you nodded and hopped down off the barrel to leave and walk back to the trailer.

~

As you walked inside the trailer Apogee smiled at you just as wide as ever as her phone dinged with a notification. She wordlessly showed you her phone. It was a text that your mother had just sent her:

hay ur brothr is being a pill. slep with me 2nite aftr hes alsep?

You just rolled your eyes as she suppressed a squeal, and texted back:

k

Apogee's plan was crazy. Everything about this was crazy. Your whole life had become crazy. And by the stars, you wouldn't trade it for anything. Even if it mean gambling everything just to keep it.

"What's wrong?" Apogee whispered to you in the dark.

"Nothing," you whispered back.

"You don't normally last this long," she teased, flexing her tight, vaginal muscles around your cock, buried balls-deep inside her. "You're not nervous are you?"

"No."

"Then cum inside me," she said. "Cum deep inside me."

"I don't need the dirty talk."

"It kinda feels like you do," she said. "It's been almost five minutes and you haven't even started to flare."

You humped into her as quietly as you could. "I just have a lot on my mind. It's been a long day."

"Oh yeah? What movie did you end up watching?" she asked.

"I watched a porno starring you and Mom through the windows." You felt her tense. "Yeah, I didn't even leave."

Even in the dim moonlight, you could see the glint in the corner of her smile and she pushed back against you harder. "What was your favorite part?" she asked playfully.

"I don't know," you said as you continued to quietly fuck your twin sister. "Maybe it was the part when you were elbow-deep inside her."

"Oh yeah? Are you sure it wasn't when she marked her territory in the shower?" she asked.

"What happened!?" you asked. "The bathroom was all fogged up."

"Oh? She shoved me down in the stall corner and squatted over me-"

"F-fuck!" you grunted as your cock flared. You shoved it as deep as you could inside your sister as you started to cum hard against the entrance of her cervix. Apogee purred as you flooded her womb with your thick seed.

"I didn't think those showers would be your kink," she breathed.

"It's not!" you tried to object even as your dick kept throbbing and pulsing, pumping more cum into her. You waited for it to start to soften so you could pull out...

"Maybe I should drink extra water..."

"No."

"And the next time we're in the shower-"

"Stop!"

"I could just squat over you and..."

Your dick throbbed harder inside her. "No! I don't want this fetish!"

She giggled, making her pussy quiver around your dick. Once she got all of the laughs out of her system she laid there and waited along with you for your dick to finally go soft.

"..."

"..."

"Are you still thinking about me drinking a lot of water?"

"No."

"Well, you need to..." she made a 'get smaller' motion with her finger and thumb.

"It's kinda hard."

"I can tell," she said, wiggling her hips.

"That's not helping!" you said.

"..."

At least your flare relaxed.

"Okay, are you ready?" you asked.

"Are youI?" she asked, even more earnestly. "You're going to need to be ready."

"Does it feel like I'm not ready!?" you asked her with your erection still mostly hard inside her. "It's taking all my willpower to not think about... the plan."

"Okay..." Apogee wiggled herself away from you as you did the same to pull out as gently as you could. "Here goes nothing..."

Apogee got up from the cot and tightly cupped her pussy with her hand as she shuffled over to Delta's bedroom. You waited in the dark and a moment later you could hear her laying down on the mattress. You silently climbed out of the cot and waited just aside of the bedroom door frame. With your eyes adjusted to the low light, you peered around the corner as Delta peeled off her top and kicked off her shorts. She rolled over on top of Apogee next to her, flagging her tail with her ass facing you. That alone was enough to get you ready.

They made out for quite some time. Apogee indulged herself in sucking each of Delta's nipples for an infuriating amount of time, but you waited until the right moment. Things were already past the point of no return. And you would only have one chance to get this right.

Apogee ran her hand through Delta's mane. Delta shifted down along Apogee's body, kissing her, her neck and collar bone, and giving each of her pert nipples a sucking kiss before venturing further south between her legs. As soon as Apogee felt her mother's mouth on her vulva, she grabbed her legs and pulled them back, giving her pelvic muscles a firm squeeze. Delta was treated to a mouthful of-

"Pineapple!?" Delta asked, tasting the very-stallion cum flooding her mouth. "Have you and Aileron been-" Delta's voice was cut off as you moved behind her, prodding her marehood with your erection.

"Oh, hello Mother. Would you like to engage in sexual intercourse, as we have been regularly doing?" you asked, far louder and more stilted than you explicitly needed to. You thrusted forward, sliding completely inside her to the hilt, and shoving her forward into Apogee's pussy.

"Mom!?" Apogee exclaimed, "Have you been cheating on me with my brother!? Secretly having sexual congress with your own son?"

"Cheating!?" you asked into the darkness as you started humping inside Delta. "Apogee! Is my sister also in here with our nude mother, having secret sexual relations with her own daughter behind my back!?"

"Did you two plan this!?" Delta shouted. You only answered by humping harder, shoving her face back into Apogee's pussy. Delta pushed herself out of Apogee's crotch. "I told you not to tell her!"

"I didn't tell her," you said. "She caught us out on the couch that first time." You shoved her forward on top of Apogee. Apogee just hugged her. "And I told you not to tell him!" Delta scolded.

"He knew we were going to do it ahead of time, and he watched the whole thing," Apogee said before giving her cheek a kiss.

"Pineapple! Did you-?"

"What? This?" You asked as you pulled out of Delta and slid inside of Apogee underneath her.

Apogee moaned as you slid back inside her. "Yeah, for a little while now," Apogee said.

Delta lifted herself up to look underneath at the full length of your dick sliding deep inside of Apogee. "No! Stop it! You two can't be-"

"Be what? Having sex with family?" you asked, pushing her forward onto Apogee again.

"Seems a little hypocritical," Apogee said, playing with her mom's tits. "Ooh, my brother's dick is ~sooo~ deep inside me!"

"No! Tell me you did not cream-pie your sister!"

"What? You mean again?" you asked, feeling your own sloppy seconds spurting out of your sister's pussy.

"Relax. I'm on Moon Tea," Apogee said, reaching down between them to play with Delta's clitoris.

"Unless you're jealous!" you said, pulling out of Apogee and fucking your mother just as deep as ever.

"I'm not!" Delta gasped between panting. Apogee sucked her nipples and played with her clit faster as you kept fucking her. Delta's breathing became more ragged, and the tension in her muscles melted away. You started to flare inside her and she flopped forward onto Apogee, still sucking her nipples just as hard as you were fucking. Delta let out a whorish moan as she came all over your dick and Apogee's hand. Your dick throbbed and pulsed as you flooded your mother's pussy with a fresh load of your cum.

You kept yourself hilted deep inside her as you finished cumming, rolling with her to the side of Apogee. The two of you snuggled up close together with her. You buried your face into your mother's mane and nibbled her ear. Apogee rolled over in the bed and reached behind her, pulling you out of your mother and presenting your erection against her own marehood. You pushed forward and fuck Apogee's pussy again, between Delta's legs, letting your shaft rub against your mother's marehood. You reached between them to play with Delta's clit as you fucked Apogee again.

It was hard for your mother to sound authoritative between her plaintive moans.

But it didn't stop her from trying.

"We are gonna- oh fuck!" You felt her pussy give your shaft a spurt of fresh wetness. "We are gonna have a long talk about this tomorrow!"