Be Careful What You Swap For

You wake up and moan, your body sore from the many sexual positions you’ve been in lately. It doesn’t take long for you to realize that you’re in Vinyl’s body. Something akin to a hangover is giving you an aching pain in your horn. Once you sit up you’re glad to see Vinyl, who is in Octavia’s body, slumped in a chair and reading a book.

“Hey, you okay octy?” she asks.

“My head and horn hurt.” You rub the horn, which only makes it worse. “Ugh, why’d you leave me in there so long?”

“Sorry, I thought I heard something. When I went out to check, it turned out our guest got here early!”

You look at her with an unamused expression. “Guest?”

She gets up and trots over, a smirk on her face. “Yeah, Big Mac is here for his monthly visit.”

With a gulp, you ask the million dollar question. “Monthly visit?”

“Heh, don’t play dumb. He’s here to give us a good rutting, scratch that itch that only a well-endowed cock can reach!” Vinyl leans in closer, reaching a hoof up to rub at one of your temples. The pressure starts to melt from your horn. “Trust me, you’ll feel better. You just need to release a little of that tension in your horn.”

You don’t say anything as you relax, and Vinyl uses her experience to help with your headache. On the one hand, you know Octavia is still trapped upstairs in your human body, and likely panicked as you haven’t come to switch back yet. On the other hand, Vinyl doesn’t realize there is a human in the house, or that she had sex with one in her lover’s body.

It’s a tough choice you have to make to either tell her the truth and risk her wrath, or go a few rounds with Big Mac so you can sneak upstairs to make the swap. This whole ordeal has been more trouble than you bargained for and you are seriously considering revealing the whole thing right now.

However, you’re also just a tad curious what it’d be like to have a stallion inside you. This opportunity will likely never present itself again, and it won’t be weird or anything because you’re inside a mare. If it’s just some vanilla sex, then you can run right upstairs with the stone in hoof to switch back into your rightful body.

“Hey,” you ask. “Think he might want to try the stone? Where’d you put it?”

“Aw, don’t worry about it. Hey, Big Mac!” Vinyl opens the door, and the large stallion walks in the room.

Your plan to at least figure out where the stone was hidden failed, and now your jaw falls in shock at the sight before you. Big Mac is easily one and a half times larger than you. Every muscle on his body is at least double the size of your own, and his muzzle is square. Already you can make out a large chunk of meat dangling between his hind legs. Even semi-flaccid, you realize his cock is about the size of your foreleg.

While you know horses have longer dicks just to help them reach the mare, seeing one this close gives you serious doubts about your plan. Without realizing it, Vinyl and Big Mac have been talking, but you’ve been to distracted to notice.

“Huh?”

Vinyl and Big Mac laugh. “I asked if you saw anything you liked, Octy.”

“Eeyup.”

“I, uh.” You don’t understand why, perhaps it’s because you’re not used to your body and your body is horny, but you can’t stop staring at his dick. Your rational human mind is saying that you should admit what happened. However, you don’t want to admit to the two days of sex in front of Big Mac, nor would you. The burning ache in your marehood has reached the point that you can’t refuse. “When do we start?”

“Oh, just climb onto the bed but leave your hind legs on the ground. Seriously, Octy, you act like you haven’t been banged by a stallion before.”

Before you know it, you’ve climbed onto the bed and wiggle your flanks. A growing part of you feels naughty and adventurous, eager to cash in on just one more wonderful orgasm as a mare before you sort this mess out. If this is anything like the last few that knocked you out, it’ll be worth it.

Big Mac steps up onto the bed without so much as a word. He’s clearly comfortable with this arrangment as he wastes no time.

You feel his cock slide against your tits and push itself between your stomach and the bed. Judging by the dampness on your belly, he’s already begun to drip some precum in his excitement. As he grinds the shaft against you, you realize what he is doing.

The burning in your marehood feels like you ate some really spicy food and are sweating. The folds are slowly getting wet and slick, and all the heat remains focused in the one small tunnel between your legs. Muscles begin to spasm as you feel your marehood clenching up over and over, winking to invite the stallion inside you.

 As Mac slides out, he pushes the tip against your marehood to see if you’re ready. The head of his dick slips across your wet slit easily.

You let out a yelp and then moan, your hind legs beginning to tremble as you try to cope with the sensations. Each breath comes faster than the last and you can feel the warmth spreading from your marehood down your hind legs.

Doubts aside, you bite the bedsheet to muffle yourself as he repositions himself and slides inside you slowly. You can feel every inch of your backside being spread open and parted by his thick shaft. The sense of fullness by the warm cock is like nothing you’ve experienced before. The faint pulse in his cock is also made known as your tight pussy wraps around his dick and squeezes.

Mac is making his own grunts of approval as he slides in. His medial ring rubs against your outer lips and bumps into your clitoris as it passes inside of you. He bottoms out and adds a “Eeyup.”

You feel pressure against your stomach as your hips spread wide to accommodate his length. It feels like you have ten feet of stiff rubber shoved up inside you, when in reality it’s just three-fourth’s of grade AA Apple family cock.

When he pulls back you feel a deep yearning to be filled again. The emptiness is nearly unbearable and you nearly release your grip on the blanket to complain. Then he thrusts forward, quickly filling your slick cunt back up. You scream loudly into the blanket and pant from the single thrust.

As Big Mac picks up his pace you find yourself drooling on the blanket. His thrusting is steady and you feel a bit fuller, a bit closer to release, with every thrust. Each time he pulls out it makes the longing worse, which makes the next thrust that much better.

You hardly notice as the slow and steady orgasm builds up to the boiling point. Both forelegs ache from how hard you’re hanging onto the comforter of the bed as Mac thrusts at a fevered pace. The bed is creaking loudly as he faithfully jackhammers your cunt.

Every muscle in your body spasms and clenches down. You feel your ass squeeze down around Big Mac’s cock. The friction nearly burns as he pulls out and thrusts in against the increased tightness. Judging by his moaning, he’s really enjoying it.

Not a few thrusts later you feel him bottom out and hold himself there. Slowly amidst the burning waves of pleasure from your spasming muscles, you feel a thick, warm fluid filling up your insides.

As muscles slowly relax, starved for oxygen, your whole body burns and tingles in delight. While the orgasm fades you can feel thick strands of cum dripping out of your pussy. It’s not until you’ve stopped clenching down on Mac’s cock that he pulls out.

With a wet plop, you’re free and you attempt to push off the bed. However, you’re muscles are like wet noodles after the ride he gave you.

“Wow, that was beyond amazing,” you say.

“Awww yeah!” Vinyl shouts. “And that was just round one! Now, you’ve got to return the favor because Big ol’ Mac has more stamina than that!”

“Wait, what?” You push off the bed, managing to balance on four unsteady legs. “Round two? I’m sore, I don’t think that’s a good idea…”

“Hey, a good mare takes care of their stallion and I know how much you love to suck cock.”

You cough and blink at her. “What?!”

Vinyl smirks and gestures to Big Mac. “Eeyup. Nopony polishes my pole like you, Vinyl.” He looks right at you, and his eyes drift to your horn. He smirks, and you realize he’s expecting some kind of magical blowjob.

In that moment, your horniness satiated, you decide it’s gone too far. You’re not going to suck a horse cock to protect Octavia’s secret. Sure, Vinyl may be pissed a human has been hiding in her attic, but it’s not like she can take back the last dozen orgasms you’ve had with her!

“I’m not Octavia! I’m a human,” you blurt out. “Hey, Octavia! Help!” You back up, a bit panicked.

Instead of looks of disbelief or straight jackets, Vinyl busts out laughing. Her body, that of Octavia, falls over to the floor and rolls onto it’s back in laughter. Big Mac is letting out a soft chuckle, and a moment later, you see Octavia walk in.

It’s the first time in a couple days you’ve seen your proper body, that of a six foot tall human. She’s smirking and chuckling softly as well.

“What?! What’s going on here? I did all of that so Vinyl wouldn’t know about a human! You said so!”

Octavia walks over and sits on the bed, beckoning you to join her. “Have a seat and I’ll explain.”

You grumble as you climb onto the bed.

“Vinyl heard me when I came down to try and switch us back. She caught me, or rather your human body, poking around for the stone. I had to come clean with her. And then she told me how you’d done more than just play my role… you slept with her and swapped bodies with her to bang some more.”

“But I was trying to keep the human thing our secret,” you explain.

“Yes, and granted I’m not that upset. However, my marefriend and I thought it a bit unfair you were masquerading as me and having all this sex without either of us knowing. I asked you to keep a secret, not horn-bang her.”

She starts to scratch behind your ears with her fingers. You coo and start to calm down. “Okay… But what now?”

“There’s no hard feelings. Go ahead and roll over.”

You sigh and get comfortable next to your human body. She reaches down and begins to rub your belly. Octavia, who hasn’t been laid in days, had to listen to you banging her marefriend. As such, she’s frisky and every few belly rubs one of those fingers gets closer to your wet pussy than it needs to.

“You can stay here with me and Vinyl, provided you put these hands to good use. I think we can do more than just learn some music from you, and from what I’ve heard the last two days, you’ll rather enjoy what I have in mind.”