Rarity nipped Mac’s ear sensuously, letting her peeking erection drag along his stomach as she crested his chest. “The only question now, Mac, is whether you’re willing to indulge what I’ve been craving.”

“Ya mean ya wanna be on top this time?” Mac asked with poorly concealed hope in his voice.

“I can only promise to take it slow for so long,” Rarity warned. “I’ll let you know when I can’t take anymore. If you’re not ready by that point, you’ll have to take the lead.”

“Alright, but Ah’ve never really done anythin’ like this before,” Mac said, quivering in anticipation. “Ah mean, Ah can only do so much by mahself, so…”

Rarity smiled. “I’ll be more than happy to teach you, but I’m not always going to be in this mood. I have some toys I could lend you if I’m feeling submissive next time, because the most important thing when starting out is to keep yourself loose.” Rarity chuckled. “Well, that and the small amount of preparation beforehand.”

“Preparation?” Mac cocked his head.

Rarity gestured toward the door. “Follow me to the washroom and we’ll get started.”

Not entirely sure what to expect, Mac followed along shakily. He was very thankful that Granny was asleep, because the stiffening member poking out from between his legs was not something he wanted her seeing.

Safely inside the washroom, Rarity began her instruction. “Now, even though we haven’t had dinner yet, we’ll probably need to make some room.”

Mac cocked his head. “Room fer what?”

Rarity sat down and gestured to the jutting stallionhood between her own legs. “For this, silly. We’ll need to make sure there won’t be any… obstruction.”

Mac blinked before it finally dawned on him. “Oh, right, uh… Yeah, Ah’ll do that.”

Rarity sighed. While certainly not the most glamorous part of the act, it was nonetheless necessary, however much she wished it wasn't. Of all the things she wished there was a spell for, this was definitely high on the list.

Once both parties were satisfied, Rarity got to her hooves and pulled back the shower curtain. “Now we just need to clean up a bit and then we can move on to lubrication. Though I’m afraid we’ll need something a little stronger than saliva for you. Luckily, I happened to have brought just what we’ll need. So get in there and start scrubbing!”

Mac nodded, hopping into the shower. Something he was not expecting, however, was for Rarity to join him. Taking the soap from Mac’s hoof in her magic, she swirled it around Mac’s rim before spreading him open to clean a bit deeper. Mac winced at the initial sting of the soap, but relaxed as Rarity began to prod all the right spots.

All too soon, Rarity retracted the soap and began to wash her shaft, a task that was completed in much less time. Stopping the water and stepping out of the shower, Rarity gave herself a quick towel dry before waiting for Mac to do the same.

Discarding the wet towel, Mac followed after his unusually bouncy marefriend to find her waiting impatiently on the bed. “You okay there, Rare?”

Rarity blushed. “Sorry, I’m just too excited. I never thought I’d be able to do this before.”

Mac chuckled. “Can’t say Ah expected ta get the opportunity, either.”

Rarity instructed Mac to lay the front half of his body along the bed, leaving his back half sticking off the end. Lifting his small tail out of the way, Rarity pressed a lubricated hoof to Mac’s star. Just like with the soap, Rarity teased all the right spots to work her hoof as deep as possible, but without the sting to offset the pleasure, Mac was left squirming, wishing it would go deeper.

“Eager, are we?” Rarity giggled. “I’m sorry, but you’ll just have to bear it a little longer.”

True to her word, Rarity’s hoof did not linger much longer. But rather than grateful, Mac found himself unsatisfied. “Alright, we did the lubrication. So what’s next?”

Rarity smirked. “Normally it would be penetration, but you said you’d never had anything inside you before. So rather than get straight to it, I feel we need something a little smaller to get your body used to it.”

Mac frowned, a little disappointed. “Well, alright. You do know best.”

“I promise it will get easier the more we do it,” Rarity smiled. “But if we go too fast, I might hurt you, and I never want that to happen.”

Mac smiled, heartened. “It’s okay, Rare, Ah trust ya. Go at whatever pace ya think’s best.”

Rarity nodded. “And I apologize in advance if I talk too much. It’s my first time doing this, too.”

Mac chuckled. “Don’t worry about it. But if we wait too much longer, we might lose the mood.”

Rarity recoiled. “Right, sorry, let me just…” In a puzzling move, Rarity began to lubricate her horn. “I didn’t think to bring any toys, I’m afraid, so this will have to do. But I suppose this way I’ll get to feel something, too.”

Intrigued, Mac spread his legs apart for easier access. Rarity took a deep breath, bracing herself before placing the tip of her horn against Mac’s rim. Biting her lip, she began to sink it in slowly. But once Mac’s ring gave way, Rarity’s momentum carried her further than she anticipated, causing them both to gasp.

Shaking off the sensation that made her hooves weak, Rarity pressed onward, until her forehead connected with Mac’s well-toned backside. Determined not to succumb to the pleasure, Rarity gave a few thrusts, stretching Mac’s virgin ring with the base of her horn before she could take no more and retreated, leaving a trail of wetness connecting her horn to Mac’s plot.

Panting heavily and struggling to stay on her hooves, Rarity attempted to mount her coltfriend, but managed only to fall back down again. “You okay, Rare?” Mac asked, concern showing through his own gasps.

“Fine, just… give me a moment,” Rarity requested. “I know horns are sensitive, but I never thought…”

Mac laughed weakly. “Well, if that was just yer horn, Ah reckon Ah’m gonna enjoy this a whole lot.”

“I’m glad,” Rarity chortled. Taking a steadying breath, she righted herself on no-longer-shaking hooves and gave Mac’s star a testing lick. Mac moaned as her tongue penetrated easily. Satisfied, Rarity reared up and moved her hips into position. “It’s kind of hard to believe this is really happening.”

Mac, experiencing for the first time the feeling of the flared head of a lover’s penis against his plot, could not help but agree. Taking a deep breath to steady his nerves, Mac nodded. “Ah’m ready, Rare.”

Given the opportunity, Rarity could not stop herself. “Ready for what, dear?”

Mac blinked. “Ready fer… just buck me already!”

Rarity giggled at the immense satisfaction that demand gave her. “Gladly, my prince.”

Rarity attempted to plunge right in, but found herself met with some resistance. Knowing this meant she just had to push a little harder, Rarity eagerly doubled her efforts. But when her head finally broke through, so did a good few inches of her shaft. Rarity and Mac gasped at the sudden rush of sensations that left both parties with nothing to do but stave off premature orgasms for a few seconds. The pre that practically flew out of Mac’s tip was the greatest testament to that.

Rarity panted, eyes wide. Her horn was one thing, but this… “Oh my gosh, Mac. This is… heavenly.”

Similar thoughts ran through Mac’s head, though he could respond with little more than a groan of encouragement.

Still coming down from her high, Rarity nudged a bit deeper to gauge her current boundary. She did not have to search long to find it, but to her minor disappointment it came just before her medial ring. “Alright, this is as deep as I can safely go. I could probably force myself further, but as enticing as it would be to hilt you…”

“Go as deep er as shallow as yer comfortable with,” Mac panted. “This is more ‘n enough fer me.”

“So if I find you yielding, I shouldn’t hesitate?” Rarity asked hopefully.

“Whatever ya like, Rare,” Mac confirmed.

Giddy, Rarity began to thrust, delighting in Mac’s moans and the wet sounds of their sex. Mac began to laugh in delight as he found himself enjoying this more than he could have hoped. Though she wasn’t as big as him, Rarity was by no means small, and left nothing to be desired. And if this was only about half of what Rarity had to offer, Mac could hardly wait for next time.

As Rarity steadily built speed, she felt herself penetrating deeper with each thrust. “I’m glad Granny Smith is such a heavy sleeper. Those noises you make bring this to a whole new level.”

“Glad ta be of service,” Mac managed. “It’s real good fer me, too. Don’t know how much longer Ah can last at this rate.”

Rarity giggled. “Going to cum already? But we just started, dear.” Despite her teasing, Rarity wasn’t too far off, either. “Well, I guess I’ll just have to finish up.”

Mac’s moans grew ever louder as Rarity began to ravage him at a fevered pace, each thrust jostling him against the bed and rubbing his own shaft against the mattress. Unable to hold it in any longer, Mac climaxed a little sooner than Rarity had anticipated. But before Mac’s peak could end, Rarity cried out as her medial ring finally broke through, and she erupted in her own orgasm.

Mac gasped at the sensation of having Rarity’s warm seed spill into him. Grinding his hips against Rarity’s shaft to coax a little more out, he felt a few extra spurts escape him, leaving him depleted. Rarity, too, moaned as her orgasm was prolonged, grinding along with Mac until she could give no more and collapsed atop his back.

“Rare, that was…” Mac laughed for want of a proper adjective.

“Better than I could have ever hoped,” Rarity agreed.

“Do ya think you could leave it in for a few more seconds?” Mac asked.

Rarity smiled. “It feels wonderful, doesn’t it? The perfect sensation to lull you to sleep.”

Mac chuckled. “Ah hear ya. But Ah’m not sure we have enough time fer too much of that.”

Rarity giggled along. “It would be a wonderful way to end the day, hm? But that will have to wait for another time, when you can fit all of me.”

“Yeah, Ah guess so,” Mac conceded. “Ya can take it out now.”

Rarity did so, bringing a good bit of seed with her as her head popped free. She took a moment to admire the gape she had left with pride.

“This feels pretty nice, too,” Mac hummed.

“You haven’t closed up yet, so you’re open to the air,” Rarity explained.

Mac cooed. “Well, if it feels like this, Ah’m sorry Ah closed ya up last time.”

Rarity chuckled. “It’s quite alright. I was asleep by that point. I distinctly remember falling asleep with you still inside me.”

Mac crawled up the bed to slip under the sheets. “Ah hope just cuddlin’ will do this time.”

Rarity smiled, sliding in beside him to rest her head against his chest. “It’s perfect, Mac.”

Lulled by the other’s steady breathing, they fell into an afterglow-induced nap.

Author's Notes:

Normal soap this time, but with magic to make it more comfortable. Because unicorns have magic for almost everything.