"...and that, fillies and colts, is how equine reproduction works, from the beginning of a mare's estrus and ova development, the usual process of coitus and how stallions and their sperm are involved in the fertilization process, all the way until a mare's delivery of the fully-developed foal." Cheerilee said, a gentle blush on her face as it had been since the beginning of the lesson, as well as seeing how uneasy many of the foals in the room were at the uncomfortably personal topic.

Cheerilee didn't particularly like teaching foals about the birds and the bees, but knew that if they didn't know the risks of having unprotected sex during their first heats, no matter how overwhelmingly tempting it was, than they may well be having foals they were not ready for. "Any questions?"

"Uh...yeah, what did ya say th' early signs of pregnancy were?" Apple Bloom asked nervously, looking a little bit more pale than usual.

"Well, they can be a lot of things Apple Bloom, though most typically they're steady weight gain, unusual cravings, morning or late-night sickness. Or, if a mare is a few months along already, possibly a gentle bulging or swelling can be felt in their lower belly, if they're showing big, and that will steadily grow bigger the further the foal develops. Of course, there could be no signs at all until they for sure start showing at around six to eight months along." Cheerilee responded.

"Oh...uh, thanks." Apple Bloom said seriously, before her vision trailed off, ending up landing on her coltfriend Tender Taps, who looked equally as serious and contemplative at that lesson; both remembering that Sweetie and herself had had sex together with their respective coltfriends just over two months ago, and they were both in full heat during it. Both now aware of just what may have become of them breeding during estrus; learning that a stallion ejaculating inside a mare during her heat was exactly how foals were conceived.

"So it's possible to get pregnant, even if it's only your first heat?!" Dinky Hooves asked, looking panicked, "I heard you can't!"

"Well, yes. The first time a mare or filly mate with a stallion or virile colt and he ejaculates within her, it makes pregnancy possible if sperm are introduced into or even around the vagina during her estrus, no matter if it's her first time having sex or her one hundredth. Each subsequent time with the same or another colt or stallion ejaculating within the mare and adding more sperm also increases the chances of the pregnancy taking if an ova is ready to be fertilized in the Fallopian tubes, or if one will be within the sperms' three to five day lifespan." Cheerilee responded, not unaware of the implications of her asking such.

She also mentally noted to move the class back a few months at the start of next mating season, if fillies were clearly going into heat much earlier than she'd thought.

Dinky's light-purple face developed a strong tint of green. "I-I'm going to be sick!" she said, before darting from her chair to the outhouse.

"Um...any other questions? Anypony?" Cheerilee asked, though she noticed that many of the fillies and colts were getting equally nervous expressions on their face, and that she may very well need to discuss such with the fillies' parents in the future.

After a while of silence, Cheerilee nodded, "Very well. If there are no more questions, please, for your safety and future, remember to use physical, medical, herbal, or magical protection if you choose to have sex with a colt or filly you love while in estrus, and only have sex with ponies you trust."

"Um, do you know anypony in specific we can ask for that locally?" a filly asked.

Nodding, Cheerilee continued. "Yes. You can get free condoms or contraceptive spells from Ponyville General Hospital, and many other trustworthy unicorns who know contraceptive spells can teach the simple spell to those of you who are unicorns, or cast it on those of you who aren't. Our very own Princess Twilight Sparkle has volunteered her services to give anypony, any age, who needs the spell a free casting, which will last an entire mating season and can be easily removed later if desired, or a five-minute casting lesson for unicorns."

Her tone then grew very serious. "Remember fillies and colts, don't risk creating or having a foal that you're not ready for, especially with so many simple ways to prevent it. Class is now dismissed for the Summer Estrus Break, see you in autumn!"

Apple Bloom, Sweetie Belle, Tender Taps and Button Mash all met up by the swings after class let out, both fillies looking faint and both colts looking ready to bolt at the slightest provocation. They'd noticed that Sweetie and Apple Bloom were putting on some pounds lately, as well as noticing them getting up to vomit during some of their 'sex sleepovers', none of which had happened before they had had sex and possibly been bred that night. Apple Bloom had also developed a strange fascination with putting chocolate sauce on sauerkraut...

"So..." Tender said after a few minutes of silent contemplation among the group, looking to Apple Bloom; "...do you think...you're..."

"Ah...Ah dunno. Ah been feelin' a bit sick lately, but Ah just chalked that up to bein' nervous over this year's final exam. Ah been havin' trouble with th' arithmetic parts...but now, af'er learnin' 'bout how foals're made...an' what we did a couple months ago while Sweetie an' Ah were in our estrus. Tender, we did it a lot...at least three times ev'ry day durin' it...an' each time ya ejaculated inside mah vaginner an' womb, puttin' all yer sperms in meh."

"Sweetie...do you think..." Button asked, placing a hoof on Sweetie's shoulder and shaking her gently to get her out of her stupor.

"H-Huh? Oh." Sweetie said, shaking her head softly to get out of her thoughts, her voice rising slightly in pitch with each word she spoke, "I...I dunno. I mean, if I am...with your foal...I've always kinda wanted to be a mama, but...it's so soon. I'm not even out of school yet!"

"I...I know Sweetie. I promise that if you are, I'll be with you the whole way, Pinkie promise." Button said, doing the motions of the Pinkie Promise, a type of promise nopony dared to break.

"Me too Apple Bloom. I love you, and, if I gave you a foal, I'd be honored to help you during the pregnancy and to help raise him or her; to be the father they deserve and the stallion you do. Pinkie Promise." Tender said, doing his own Pinkie Promise.

"Wow, look at y'two bein' all mature." Apple Bloom said, admiration in her voice, "Most colts'd run to th' hills at th' thought of bein' a daddy so soon."

"Apple Bloom, I promise I won't. I love you, just as I will our...potential colt or filly."

"Sweetie, I'll be with you too, all the way."

Sweetie couldn't help but break down at the implications, shoulders shuddering as she sobbed, Button quickly wrapping her in a comforting hug.

"Y'know we gotta tell our parents what we did an' how we may be preggers still...right?"

~

Apple Bloom and her sister Applejack, Button Mash, Sweetie Belle and her sister and partial-guardian Rarity, and Tender Taps sat at the hospital a few weeks later, awaiting Apple Bloom's and Sweetie's pregnancy test results. Tender and Button were wilting under the combined glares of Rarity and Applejack, while Sweetie and Apple Bloom sat there silently, awaiting their fate.

"Rarity, stop. I told you, it was Apple Bloom and my idea to..." Sweetie started, before Rarity held her hoof up.

"Sweetie, no. This ruffian should have known better than to mount you like that and...place his seed inside you when it could sprout! Surely he should have known what would come of it!" Rarity said, before continuing to glare at Button.

"No, Rarity, we didn't know what would happen! I was...it burned so much...and Dinky..."

"Oh, I'm sure Derpy Hooves gave Dinky quite the talking to about the fact that that little filly is now carrying a filly of her own because of her hormonal carelessness! Derpy is quite forgiving it would seem though, even happy she's going to be a grandmare to a foal of an unknown sire. Apparently Dinky had many...partners..."

"That's because Dinky didn't know where foals came from either, and she did too tell her mom whose foal it was! It was Shady Daze's. But she only wanted relief from her heat too, just like most of the fillies at school!"

"Well on this matter, all Ah gotta say t' you, Tender," Applejack cut in, looking at Tender with a much softer glare than Rarity was giving Button; "...is that if ya got mah li'l' sis' preggers, ya are takin' responsibility, y'hear?"

"Yes ma'am. I already Pinkie promised her I'd stay with her if she's with my foal, and even if she isn't."

"Me too with Sweetie!"

"Apple Bloom, Sweetie Belle? The tests are ready." Nurse Redheart called out, with both named foals, their coltfriends, and their guardians rising and heading into the doctor's office.

All six ponies filed into the small doctor office, looking to the golden-brown-coated doctor who held two pregnancy tests in his magic. "Apple Bloom?" he asked, with the named filly looking up to him, "Would you like to be alone for the results?"

"Na, jus'...please tell meh it straight. Am Ah, or not?"

"Very well. Apple Bloom, the test came back positive. You're about two months pregnant." the doctor said, showing her her positive pregnancy test.

Apple Bloom felt her stomach twist, closing her eyes and trying to keep calm. "A-ahlright." she said, a twinge of panic in her voice as it was proven true; that she truly was with Tender's foal.

Apple Bloom realized that she hadn't gotten pregnant during her first heat; it must have been when her estrus came back with a vengeance the next month when Sweetie's strangely hadn't. When Tender had mounted her and rutted her from morning until evening, leaving her feeling comfortably bloated with just how much of his colt-goo he'd left deep inside of her during her half-dozen fillings that day, then Celestia knows how many more the next, before her burn mysteriously disappeared on the third day.

Sweetie and Button had been there too, cumming to each other again and again, Apple Bloom's fertile scent riling Button into a rut as he once more pounded Sweetie into the mattress. Surely a time the foals would never forget, and now for a very good reason.

Applejack glared at Tender, but he remained as strong as a colt could in that situation. He knew that he would remain loyal to Apple Bloom, and Apple Bloom knew that as well, and that's all that mattered to him.

"Sweetie Belle? Would you like to be alone for your results?"

"N-no...just...please."

"OK. Sweetie Belle, you also tested positive. You're also pregnant, and roughly three months along." As he said that, she realized she'd gotten pregnant during her first heat.

"I'm keeping it." Sweetie instantly replied, looking over to Rarity, meanwhile thinking that she must have gotten pregnant that first time in the clubhouse; that her first time had born fruit with the stallion she loved.

"Sweetie! I thought that you—"

"NO! Rarity, Button and I made this foal from of our love for each other, and I'm not getting rid of it just because it will change my life from what you expected it to be!" Sweetie said, stomping a hoof adamantly, "I'm keeping it!"

"Very well, we'll...we'll discuss this later." Rarity said, a bit taken aback by Sweetie's outburst.

"There is n~o discussion! I'm ke~eping it!" Sweetie half-shouted, not budging a bit even if her voice cracked a couple of times, but from her age, not her resolve.

"Apple Bloom, what 'bout you? Ya gonna keep yer foal? Ah gotta say, Ah'd love to be 'Auntie Applejack' to a foal, an' Ahm sure yer bro Big Mac would be a happy uncle too, an’ of course Granny Smith’d love a great-grandbaby, but...it's all up to you an' yer coltfriend; iffin you an' Tender here are ready fer that responsibility." Applejack asked her little sister, who was subconsciously rubbing a hoof over her lower belly now; knowing it was her life-filled womb now, a little foal slowly growing within her now.

"Ah...Ah am." Apple Bloom replied simply, nodding as she looked to Tender Taps and wrapping her free forehoof around one of his, "Ah've always wanted t' be a mama one day...an' Ah know Tender will be there for meh as mah stallion, e'ry step of the way."

"I will be, I promise." Tender said, taking Apple Bloom's hoof; "Mom already said she was OK with this all, even if I need to marry you. She approves."

"I'll be with you too Sweetie, all the way." Button said with a smile, rubbing noses with Sweetie while she still glared at Rarity, "My mom says she thinks you'll make a beautiful mother to our foal, and a bride to me."

"Well, we'll have to...discuss this all more later, together, but..." Rarity said, seemingly rattled by Sweetie's glare.

"We all got us a long road ahead'a us, that's fer sure..." Applejack said, "...but somehow, Ah think it'll all work out."

~

Apple Bloom and Sweetie Belle eventually got the blessing of their guardians to carry full-term, Sweetie having more trouble convincing Rarity and her parents when they learned it was indeed twins, while Applejack and Big Macintosh freely consented, indeed encouraging Apple Bloom every step of the way. The pregnancies were more difficult than it would be with a full-grown mare, especially given how they were only just adolescents, and especially for Sweetie being gravid with two, but they persevered though the whole pregnancies, their coltfriends never leaving their sides throughout it as they'd promised.

After just over eleven months of carrying their twins, with Button and herself slowly, happily, watching her belly swelling with two new lives – and her twin-filled belly ending up looking almost as large as she was – Sweetie went into labor and was rushed to the hospital.

After a somewhat difficult delivery, given her smaller size and going into labor four times, once for each twin and afterbirth, she'd successfully given birth to a larger, healthy Earth Pony colt and a smaller but equally healthy Unicorn filly. Button was there for her throughout it all and never left her side.

Despite being fraternal twins, they both looked extremely similar save their genders, tribes, and sizes; both had a gamboge-gray coat, their mane a mix of grayish-scarlet and dark tangelo, from their father, with a streak of light mulberry and pale raspberry-red in their mane and tails, the same colors as their mother's. The smaller filly's mane was curlier like Sweetie's while the larger colt's was straight like Button's, their eyes a matching grayish-green.

Button couldn't help it when tears came to his eyes as he held his son in his hooves, Sweetie holding their daughter, naming their colt Smash Monitor and their filly Sweet Note.

Within weeks of Sweetie giving birth, Apple Bloom went into labor herself. Given she was larger built and a bit more physically matured, her labor was easier even with her larger earth pony foal, though its result was the same as Sweetie's. Tender Taps was there beside Apple Bloom, supporting and encouraging her, as she birthed their colt. His mane was a three-tone reddish-magenta and two tones of mulberry, his coat a light gamboge orange similar to his Aunt Applejack's. As he opened his eyes for the first time while Tender was holding him, he saw that he was looking into grayish vermilion eyes, his heart nearly stopping at how beautiful they were to him. They both thought that the name Fuji Apple fit well to the newborn foal, thus giving their son the name.

As they lay Apple Bloom's foal down at her teats for his first meal, Apple Bloom and Sweetie, Tender Taps and Button Mash, all knew that this was only the start of their happy new lives with their lovers and foals. For now instead of four of a kind, they were instead seven.

Author's Note

*All OCs depicted in this commission are owned by the commissioner.*

Another novelette bites the dust! I enjoyed writing this one; young love is always adorable to depict.

Another thanks to Corey19 for commissioning me! Thanks for your continued patronage!

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Until next time, I'll see you all in the comments section or my next story. Au revoir et à bientôt!!