Bonds of Matrimony

Time had passed, a fair amount that neither ponies cared to keep track of. Slowly but surely, Big Mac had found his way out of the barn and managed to leave the property without catching the attention of Applejack or Rainbow Dash. He even made it into town without much issue; minus making his wife climax as they reached the outskirts of Ponyville, he kept himself in check and continued to walk.

As he made his way from home, he eventually found a more comfortable way to walk, while at the same time keeping their bodies from moving too much. While it drove both of them a bit more ragged and kept Big Mac on the edge of giving in and rutting his wife on the spot, they knew it would be more beneficial to reach Lyra and Bon Bon’s house sooner rather than later.

Even better was when they entered town, barely any of the town's residence gave them any trouble. Sure they got a few odd stares, a random giggle here and there, and double takes from time to time, yet no one bothered Big Mac about it.

Sadly, their good luck was starting to run out.

The more Big Mac walked, the more he found it hard to resist his aching erection. He did well and held out for a long time, considering the last time he came was back when they were actually having sex. Now, with how much time had passed and him doing his best to delay himself, the line between common sense and the urge to rut Sugar Belle was fading fast.

He gave his head a shake and tried to focus his vision on his destination. Lyra and Bon Bon’s house was, thankfully, in sight and he would reach it in about forty or so steps. Sadly he wouldn't be able to make it another ten.

"How are you holding up, hun?" Sugar Belle asked from under the blanket.

Big Mac just groaned deeply and clenched his butt cheeks together in a last ditch effort to settle himself.

"Sugar Belle, darling. I really, really, really need to..." he groaned as his words started to trail off. "I really need to cum now, dear."

For a second it went quiet as Big Mac came to a stop, no longer able to even walk. Standing still he tried to not fidget his back legs, as any movement made it harder for him to control himself.

"How many ponies are nearby?" she asked, much to his surprise.

Quickly swivelling his head, he peered around him and counted. Thankfully the lunch hour had ended and most of the townsfolk were either already back at work or just walking around.

"Just five," he groaned. "No one is paying attention to me either."

"How close are you?" she followed up with his response.

"I just need ten seconds." His hips suddenly moved on their own accord, his will on its last leg, before he regained his composure.

"Can you be subtle?" she asked.

Big Mac didn't know how to reply to that question and instead gave his hips a weak thrust. As he did, he felt his front legs bend forward, while his back legs stiffened up. For a few seconds it went quiet and Big Mac wasn't sure what she was going to say to him, but as she suddenly rested her face against his chest, she spoke in a hushed but determined whisper the words he wanted to hear.

"Go for it."

Big mac snorted loudly and relaxed his body fully. Now unhindered, he stiffened his back legs more, while bending his front legs as well. Making sure Sugar Belle's head didn't collide with the ground, Big Mac arched his rear slightly. Both ponies groaned with pleasure as Sugar Belle slid about half an inch off his erection. Even though the rope prevented her from sliding more, it was more than enough room for him.

He began to thrust and while a hushed moan came from Sugar Belle, he didn't stop and quickly found a suitable rhythm. As frantic as his mind was, he kept his bucks subtle like Sugar Belle wanted and no one looked at him as he rutted his wife.

Like he told her prior, ten seconds was all he needed, and as quickly as it started, it was already coming to an end. He gritted his teeth as his erection started to tingle with an intense sensation and he got ready to release that last bit of pent up cum he had left.

And then their luck had finally ran dry.

"Oh, Big Maaaaac!" a very vibrant and upbeat voice played out.

Oh no… both ponies thought in unison.

Big Mac's body stiffened up as he blew his load but his mind was no longer focused on that. Looking to his left as he slowly turned his head, he swallowed back his horror as the last pink party pony he wanted to see was, literally, bouncing towards him.

"Please don't tell me that's Pinkie," Sugar Belle spoke in a fearful whisper.

"E-eeyup," Big Mac stammered out and he pulled his shaky body back up to a proper standing position.

"Is she coming this way?"

"Eeyuuup." Big Mac forced an awkward smile as Pinkie Pie was now within earshot of them both.

"Oh god… well you got this, honey. Good luck!" Sugar Belle replied as she suddenly went quiet.

"Thanks for the vote of confidence, dear," Big Mac said dramatically, his smile not fading.

"Hey Big Mac, whatcha doin'?" Pinkie Pie chimed in as she stopped bouncing and came to a halt just a few feet away from him.

"W-well I… uhh, I sah j-just… I was just heading to… I-I mean I was." Big Mac couldn't find his words properly and instead they spilled out like verbal diarrhea. Meanwhile as he tried to get a handle on his thoughts, Pinkie Pie couldn't help but stare at the blanket covering his body.

"You going to a slumber party by any chance? I thought only fillies did that kind of thing. Wait, who’s having a party and didn't tell me about it!?" Pinkie Pie asked cheerfully, before her expression quickly turned right around and was now one filled with annoyance and a bit of anger.

Before he could answer, Pinkies neck stretched out, more than a pony’s neck should be allowed, and she put her nose right to his and kept her wide eyes deadpanned on him.

"It's not a party. I'm just-" he started to say but stopped as Pinkie pulled her head back into a proper position.

"Not a party?" Pinkie replied quizzically as she tilted her head slightly. "Then why are you walking around with a blanket on a ho-"

Suddenly Pinkie stopped talking mid sentence and Big Mac was unsure of what she was doing until he saw her nose start to twitch. Before he knew it, Pinkie started to look around her, sniffing the air, almost like a dog searching for clues to something. As her face went into the ground and continued to sniff, Big Mac just watched silently until he realized what she was looking for.

He tensed up, his lips trembled, and his fake expression sank into one of sheer horror as the smell of sex hung in the air, almost like a lingering fart that wouldn't go away. Considering he had came mere seconds before Pinkie arrived, he suddenly wanted to find the nearest hole to hide in and stay there forever.

Big Mac didn't move though, his fear and embarrassment kept him rooted to the ground. Suddenly Pinkie stopped sniffing the air and locked her eyes on the blanket covering him. A bead of sweat started to run down Big Mac’s brow as her eyes continuously switched between his face and the blanket.

"Oooohhhhh, I see," Pinkie said slyly as she pulled herself up and began to walk to his side.

"Umm, what are you talking about?" Big Mac replied meekly as he tried to back away.

"Oh don't be silly, I know exactly what is going on here," she chuckled at him before she came to a stop and suddenly put her face a few inches in front of the blanket near his chest before speaking quietly. "You okay under there, Sugar Belle?"

“P-Pinkie how did y-" Sugar Belle's voice suddenly spoke, causing Big Mac to nearly have a panic attack.

"I can see your ponytail." Pinkie brought her hoof up to her jaw and placed it on the side, almost like she was trying to nonchalantly whisper.

Suddenly the sound of a horn lighting up with magic played out and the mane was no longer visible. Pinkie just snorted quickly before she focused on Big Mac. However as Pinkie turned her attention, Big Mac was lost in his own thoughts. Staring mindlessly forward, he thought back to when he was walking and how certain ponies were giggling at him. At first he thought it was merely the fact that he was covered up that made them laugh. Now he knew otherwise.

They knew.

Big Mac's heart sank into his stomach, and if Sugar Belle wasn't tied to him he would have sank into the ground in order to try and feel as little as possible.

"Never pictured you as a kinky exhibitionist, Big Mac. I always assumed you were just the type to hold hooves in bed," Pinkie coyly said as she gently nudged the elbow of her front leg into his shoulder a few times.

"Pinkie please, this isn't what it looks like," Sugar Belle spoke up.

"Oh?" Pinkie replied, looking back to the blanket.

"W-we had a bit of an accident with a rope," Big Mac added in, doing his best to not cry.

"Oh?" Pinkie looked back up at Big Mac.

"And we were just finding somepony to help us so we can get untied," Sugar Belle continued.

"Oooohhh." Pinkie looked down at the blanket.

"And we were… just heading to Lyra's place so she could cut us loose," Big Mac finished off as the situation came to a close.

"Oooohhh, okay. Well if you just needed somepony to cut you free, you could have just asked me," Pinkie said as she started to reach for her mane.

"No no, no. Not in public please," Big Mac spouted off as his eyes went wide and he could see Pinkie starting to pull a pair of comically oversized scissors from her mane.

"Aww you sure? I could cut you free right now," Pinkie pouted as her hoof came to a stop.

"Pinkie please, we really don't want anypony else to see us, especially without the blanket, " Sugar Belle replied in a frantic tone as she realized what was potentially coming.

"Okay, fair enough," Pinkie replied unexpectedly as she pushed the scissors back into her mane, much to both their amazement. "Anyhow, I'll let you two carry on. Can't let you stay tied together all day now can I? Ooh! This also gives me a fun new idea for a party!

Before either could reply, Pinkie suddenly zoomed off in the direction of Sugarcube Corner. Now left to their own devices again, a slightly awkward silence filled the air.

"She's gone right?" Sugar Belle asked, finally breaking the silence.

"Eeyup."

"Are we close to Lyra's yet?"

"Eeyup." Big Mac refocused and looked in the direction of their destination.

"Do… you feel better now that you aren’t hard anymore?"

Big Mac paused as he realized what she meant. Thanks to their little chat with Pinkie, Big Mac never noticed that he went soft. Now with his penis no longer smothered by Sugar Belle's moist inner walls, he was able to relax, thanks to it being tucked away back in its sheath. He fidgeted his back legs and though he could feel semen run down his thighs, he was relieved more than anything.

"I feel a lot better," Big Mac spoke with a deep sigh of content in his voice as he began to trot for his destination. "Let’s hurry to Lyra's."

Unfortunately, as he started to walk, he failed to notice the snail trail of semen that they left behind them…