Chester had recently been dealing with a lot of awkward, albeit exciting situations as a result of puberty and hormones recently.

As a result of this, he was sitting at the back of the school bus, thinking back to one of those moments that happened last night.

[i]It was normal for this family of Thoroughbreds to be showering together. This time, however, it did not go as per usual. Chester was being cleaned by his mom, Shiela, and she was sitting crouched down in front of him. At this inconvenient time, Chester had quite a sudden, large erection, which caused his mom to jolt back before she gathered herself. She then looked down at his rather large- for his age anyway, cock. Then she looked up at him. "Careful honey, or you're gonna poke my eye out!" She said with a little giggle.

After that line, his dad, Abe would also giggle and add to the teasing, "Your mom's quite a gorgeous woman, isn't she? Too bad she's taken." These comments made Chester quite flustered, and he stayed quiet for a little while.

At the end of the shower, while everyone was drying off, Chester couldn't help but stare at the bare ass of his younger sister Delilah while she was drying herself off. Abe noticed this and decided to tease the young boy some more, "She's really taking after her mother, isn't she? Don't get any funny ideas, sport, I'm not ready to have grandkids yet!" He finished with a chuckle. This did confuse Chester, as he still had no idea about where children even come from, despite already being twelve years old.[/i]

He was then brought back to reality by the actions of his best friend Pedro, who was sitting right next to him. Pedro had listened to his intrusive thoughts and started gently rubbing the tip of Chester's cock after he noticed his boner was poking right out the top of his pants.

Chester was quite unsure how to feel about this. He wasn’t used to his own touch there, much less anyone else’s. He certainly didn’t mind the feeling, but still wanted to know his friend’s motivations. "What are you doing?" He simply asked.

This caused Pedro to pause and stop the touching for a moment, "I'm just touching it, dude. Got curious, can I continue?" He asked the horse boy, whilst he stared at the tip, "You can touch mine too~" He added, as he pulled his pants down just a little so his tip also stuck out.

Chester blushed quite a bit, he felt like it would be rude to stop him at this point, "Sure... Go ahead," he responded, deciding not to touch the donkey's cock yet. Pedro wasn't as patient, though, and immediately resumed touching Chester's tip.

After about a minute of Pedro rubbing Chester's tip, Pedro had an idea... Said idea only really being possible thanks to where they were on the bus, their crotches completely out of view of anyone, "Yo, dude- We should totally compare sizes" He said quietly, though with excitement in his voice.

Chester was slightly bashful and hesitant with that idea, "I dunno... Is here a good idea?"

Pedro pulled his pants down significantly more after this question, which revealed his entire donkey shaft, "Nobody can see us~"

Chester looked nervous now, worried they'd get caught, but peer pressure was getting to him. He eventually decided to do as suggested and pulled down his pants, using his hands to kind of roughly measure his dick, then did the same with Pedro's dick. Chester's dick was two inches bigger, "I guess I'm bigger..." Chester said, fully having expected Pedro to be the bigger one.

"No fair," said Pedro, and then proceeded to measure in the same way, and came to the same conclusion. Pedro then had a small pout on his face, followed by, "Hmph, size isn't all that matters, why were you even hard in the first place?" Pedro asked, causing Chester to become rather visibly flustered. 

"Oh- Uh, I…” Chester knew he couldn’t tell the truth that he’d been thinking about his sister. “I was thinking of my girlfriend, she sent me some really nice nudes last night..." He said rather timidly.

Pedro looked surprised and smirked, "You have a girlfriend? I don't believe it one bit! Prove it, show me the picture," he said, a devious smile now on his face.

"It's... It's on a burner phone under my bed," he said, lying through his teeth. He had no idea how to get out of this situation.

"It is? Well, bring it tomorrow and show me, then I'll believe you."

Chester had internal panic at this point but tried his best to keep his composure. "Sure! I'll bring it tomorrow, I'm sure you'll see how hot she is too," he said, at this point having dug himself into a hole that was even deeper, unsure how to get out...

--- Later the same day, now at home. —

Chester got home and just sat down on the couch in the living room as he tried to mentally figure out how the fuck he was going to get out of this one... He managed to think for about five minutes, getting just about nowhere, his thinking was only stopped because his dad yelled out his name. 

He went over to Abe in the kitchen and looked up at him, "Let me guess, chores or something?"

Abe chuckled, "S'pose so! This one is important, though! Luna’s going into heat, so you have to separate her from Nyx so that she won't get pregnant."

This sentence made no sense to Chester. They’ve had those horses for quite a while, almost since they got the very farm that them and the horses live on. Chester thought the idea of them being able to make babies was weird.

Wasn’t making babies a mom and dad thing? Luna and Nyx are mother and son- can they really make babies?

Chester decided he had one question to ask, "How can she get pregnant? Nyx is her son, right?"

Abe simply snickered and responded, "Nature doesn't care if they're family, sport." This still didn’t quite make sense to Chester, but it was enough that he would stop questioning it, for now, anyway.

He then went to get his sister, Delilah, wanting a little help to distract the mare's colt when they finally got out there. Delilah was already in the stables, in the middle of mucking a stall, some dirt over the blanket bay coat on her arms. She finished shoveling up the last bit of horse droppings, tossing them in the wheelbarrow, and then going to offload it in a pile where they put manure.

She then went back into the stall, grabbed a big, rather heavy bag of pine shavings, and Chester grabbed a second one as two were needed for the stall. They opened the bags and spread the shavings over the stall floor, with the help of a shovel. 

Once they finished up the stall together, they grabbed the harnesses and leads from the equipment stall and went out into their shared pasture. Once out there, Delilah put a harness and lead on Nyx whilst Chester put his on Luna.

"Delilah, lead Nyx over to the next pasture please!" He requested, patting Luna to distract her. Delilah did as requested. Chester had Luna on a long lead and she was mostly standing still, which meant he would walk around her, patting her along the side as he went. 

Once at her backside, he noticed her vulva. He wasn’t expecting the sight of it to be as arousing as it was. He could see into her tunnel with every wink of her vulva, and he realized that up close, a feral one doesn't look much different from an anthro one. He took the opportunity of Delilah being busy to quickly snap some up-close pictures of her vulva, not noticing that Abe was approaching.

Abe walked up behind Chester and poked him, which startled him and made him turn around, "Dad?!" He exclaimed, shocked. Chester still hadn't really noticed he was erect, and especially not noticed that his tip had once again crawled out of the top of his pants. He would quickly notice though, as Abe pointed to it and chuckled, "Ya gonna feed her that carrot? Don't worry, sport, we've all been there!" Chester was very embarrassed and simply took off Luna's harness and lead, and then slinked away back inside, soon followed by Delilah. However, Delilah stopped following once she reached the stalls, as it was her turn to muck them, and she was still missing one.

Chester got to the room he shared with Delilah and sat down on his bed, neglecting to lock the door. He looked through the pictures he’d snapped of Luna and tried to figure out which ones were the least obviously feral and deleted the rest. But even after his careful selection, he was unsure if it was convincing enough. He pondered what to do for another couple minutes, but his thoughts were interrupted by Delilah walking in.

Delilah didn't look at him directly and thus didn't notice his tip still poking out of his pants. Her clothes were dirty from mucking the stall, so she started undressing right in front of him, as that was quite normal. Usually, it didn’tbother him, but this time he was already horny, and simply couldn't help but stare at her as she got naked. She noticed this and looked over at him, "Is something on me? Do I need to shower too?" She asked, not wanting to shower today as she already showered this morning.

Chester shook his head and worked up the nerve to ask Delilah what he had been thinking about. "Delilah, can I... Can I take a closer look at your body?"

This request confused her, as they already saw each other naked every day in the shower. "Why, though?" She asked, curious as to why he had to make this specific request.

"Well... I... I kinda got myself into trouble and told Pedro that I had a girlfriend and she sent me naked pictures... He wants proof and I don't have any naked pictures to send him, can I take some of you? Pretty pleaseee?"

She thought about it for a second and eventually responded, "Yeah, why not! As long as I can take some of you too!" This idea made him hesitate for a second, but he ended up agreeing. He started getting naked, which felt very weird even though they were often naked together. It felt much weirder because of the fact that he was deliberately getting naked for her, and not just for a necessary reason like a shower or bath. Once naked, he wasn't quite sure what to do with his body.

Luckily he didn't have to ponder for long, as Delilah would take the initiative here, "Sit on the bed and spread your legs a bit, I wanna get your entire thingy in the picture!" She demanded

He obliged, spreading his legs, further making his seven-inch erection stand out. There was even  some strange, sticky fluid on the tip. She then took a full-body nude picture of him, which did make him speak up, "H-hey! Not my face!" He objected

"It's not like I'm gonna show anyone," she replied.

After she made that point, he simply didn't complain. She then got close to his cock and took a close-up. Her being this close made his cock twitch right in front of her face, the twitch causing a small drop of pre to land right on her nose, which made her squeal in surprise. "S-sorry! C-can't really help it," he apologized, then wiped the little bit of pre off of her nose and just sucked it off his finger.

Once she had taken her pictures, they swapped places. Delilah sat up on the bed, spreading her legs to show off her vulva. Chester got two pictures of that, slightly different angles so he had more to work with. The lips of her vulva looked… slimmer than Luna’s? Was that because she wasn’t in heat?

Once he took those, he worked up a little more courage for his next request. "Can you spread it open a bit for the picture? It'll be more convincing," he requested. She spread her vulva open as requested, showing off her entrance, and he could see it only really went deeper at the bottom near the ass, where it still does look rather tight

Right as Chester took a picture of it, his mother Shiela walked into the room. Chester just looked at her like a deer in headlights for a couple of seconds. He didn’t quite know if what he was doing was bad, but he felt like he should at least be a little concerned about being caught. 

"M-Mom?!" He simply exclaimed, unsure how to really react here, but hoping he wasn’t in trouble. Delilah had no sense of worry, however, and simply waved at their mother when she entered.

Shiela looked at the two and sighed, "Young man, get dressed and come to the living room, we've got to have a chat." She simply said and left the room. Chester was now worried he had done something wrong and started hurrying to put his clothes back on. Delilah seemed a little disappointed, but she just laid down in her bed, at least happy that she didn't seem to be in trouble, though she was still worried for her older brother.

Once dressed, he got up and left the room, and went right down to their parents in the living room. They were sitting at a chair each, and on the opposite side, there was one free chair, which Chester sat down in. There was silence for a bit until Abe spoke up. “So, me and your mom talked. We’ve seen you take compromising pictures of both Luna and your sister. I ain’t wanna assume things, so explain yerself””

Chester did a nervous gulp before he started talking, “Well… I- I just needed a naked picture of girl parts. I told Pedro that I had a girlfriend and she sent me naked pictures, and he wanted proof… But I have no girlfriend and no naked pictures.”

“Hun, you should’ve come to me instead of roping your sister into it or taking advantage of Luna. I could’ve helped,” Shiela said with an expression that starts off disappointed and then turns into a smile right at the end. She then realized she had another question, and continued her sentence, “So… Do you even know how to deal with boners? I see you sporting one kind of frequently.”

“Boner?” He simply questioned.

Abe laughed, “Y’know, when your dick gets hard?”

“Dick? You mean my thingy?”

“Yes, your thingy. It’s called a dick, a penis, or a cock, whichever you prefer. It’s not called a thingy, though,” Abe corrected the young boy.

“I can… do things about it? I thought I just had to wait them out?” He questioned again, wondering just what kind of magic technique he was unaware of. Whilst questioning, he looked down at a bulge in his pants, wondering just what his equipment may be capable of..

Shiela then looked at Abe and sighed, “It’s about time, isn’t it?”

“Yeah,” he replied.

They then both looked back at Chester, and Shiela smiled, “So, what’s gonna happen is- You’re gonna go up, get your sister and come into the sauna. We’re gonna finally teach you about your bodies. No clothing required. If you do that, I’ll let you take pictures of me to show to Pedro. I don’t mind it. I did some modeling in college.”

Once she was done talking, Chester smiled, “Alright!” He was finally a bit more at ease, able to tell he wasn’t really in trouble anymore. He went back upstairs and into the room that he and Delilah shared. 

He then smiled at Delilah, who smiled back. “Sauna time! Mom and Dad are gonna teach us new things!” He said, fully well knowing Delilah loved the sauna and loved learning new things! What could be better than a combination?

They both just undressed in the room, Chester grabbed his phone, and then they both headed down to the sauna. They went into the sauna, greeted by a steamy room of course, as well as their mom and dad in the buff. Shiela is already leaning back on one of the benches, leg spread while spreading her lips. “Come here you two! Look very closely.” 

They both approached and knelt down right in front of her and looked closely. Shiela then looked down at the two with a smile. “So this thing, in general, is called a vulva- Or a pussy, if you want to be informal about it,” she said, gesturing to the lips of her pussy, “Oh, and ask any questions you have when you have them!” She added.

Chester looked a little nervous and he also started to get a little erect. “Can I take a picture now then? For Pedro?”

“Of course you can, hun!” She responded, making sure to spread nice and wide so the camera could look straight into her tunnel. Chester quickly grabbed his phone and snapped a picture now that she was posing her pussy so nicely for it. 

Once Chester had his picture, Delilah had questions, “So that’s what I have too, right? What’s it for?”

“Well, honey, its purpose is to let women have babies! You two both came out of right here!” Shiela responded and stuck a single finger into her opening and into her vagina, pulling it right back out.

“We came out of that? How did we even get in there?” Delilah asked, which made Shiela blush just a little bit as she reminisced about the passionate lovemaking that got them there.

“I’ll explain that when you’re a bit older,” she said. “But let’s just say your father and I had to work very hard to get you in there! That aside, the pussy has another purpose! You can use it just to make yourself feel really good!”

Delilah looked confused. “I can use it to feel good? Can you show me how?”

“In just a moment, sweetie~” Shiela said, pointing at the hole she had almost just stuck her finger into. “That, right there, that’s the vagina. That’s both the way in and out for babies,” She paused and then pointed at her clitoris this time, “And this is the clitoris, it’s not needed for making babies, but you can touch it to feel good.” She finally finished, then helped Delilah get up onto the bench, right beside her.

She then guided Delilah’s hand down to her pussy, placing her thumb around the clitoris and the rest a bit lower. “Use your thumb to rub your clitoris while using the rest to just rub the vulva.”

Delilah started slowly doing as instructed, letting out soft moans. This entire act she was doing felt really weird, but she definitely liked doing it. Shiela would soon follow, starting to rub her own clit while rubbing her vulva, though doing it noticeably faster and moaning a little louder.

They kept at it for a while, and just as Delilah was about to ask how long she had to do it, she started feeling weird… As if she was about to pee? That’s what she thought, anyway, “Mommy! I gotta go!” She said and stopped rubbing herself for a moment

“No! Continue, trust me~ It’s fine!” Shiela exclaimed, she couldn’t really help but be loud about it as she was getting close too. The words of encouragement were good enough for Delilah, and she resumed her masturbation. It took about another thirty seconds for Delilah to moan out loud and for her body to shake, followed by her slumping down a bit.

“N-not a squirter, I see~” Shiela said while continuing to rub herself. Chester was still looking intently at her pussy, which at this point she had forgotten about, and now it was too late as she moaned out loud, squirting right on Chester’s face, leaving him wide-eyed and in shock.

“Don’t worry about it, you can just wipe it off or lick it off, it tastes good I promise~” His mom said, and he trusted her, licking around his lips and wiping some off with his hands, then sucking that off of his fingers.

“It… It tastes nice. Do all girls do that?” He asked, hoping it would be the case.

“All girls make the stuff, but not all girls squirt it. Try licking your sister once.” Shiela replied, a smirk on her face.

Chester happily did this, getting between Delilah’s legs and giving her pussy a single lick, causing her to moan… The lick was followed by another and yet another. It took him some willpower to control himself and stop, “You’re right! She did it too!”

“Now it’s your turn, though~” Shiela said while standing up and walking to the side to make room for her son. He got up on the bench, leaned back, and spread his legs.

Shiela stared at his 7 inches for a moment, then she got on her knees, right between his legs. She got Delilah to come down next to her and look closely. She then held his cock in her hand, pointing to the hole at the tip, “That’s the urethra- It’s where he pees out of, as well as ejaculates.”

“What’s… ejaculate?” Delilah asked, unfamiliar with the word.

“You’ll see soon.” She said, then wrapped her hand around the very glans of the cock, “That’s the head of his penis- It gets used for making babies- The details don’t matter yet, though.”

Shiela then started stroking Chester’s cock, “This is how boys feel good with their things. When you get a boner again Chester, you can do this by yourself to get rid of it.”

She continued jerking him off, causing him to start panting and moaning. It took only a minute of this stimulation for Chester to instinctively stretch his legs and curl his toes as he orgasmed. Shiela had seen it coming and pointed his dick a little towards himself, so his seed landed right on his own stomach.

“Wow… That felt… Wow…” Chester said, panting between words still.

Shiela looked at Delilah, “Go on, girl! He tried your liquid, you try his!”

Delilah used a finger to wipe a bit of cum off, then put it into her mouth and swallowed it. She made a bit of a weird face, “Blegh- It’s salty… Taste is… Alright? My mouth feels very dry now, though… Can I have OJ?!” She said very enthusiastically, glad to have an excuse to get orange juice.

“Soon, honey” Shiela said with a big smile.

Abe looked at Chester and smirked, “Y’know, you’re a lucky one, sport. Most moms would never do that with their sons.”

“Does that mean we can do it more later??” He asked, very excited about the idea.

“Maybe if you behave!” Shiela said, smiling at him, “At least, now you don’t have to pretend to have pictures of your girlfriend! Now you can have actual pictures of your actual girlfriend!” She added, big smirk on her face.

Chester had a big blush on his face. The idea of having a girlfriend- especially one as good looking as his mom, was quite appealing! He wasn’t entirely sure how to feel, though. “So… You’re my girlfriend now? Isn’t that weird, though? You’re my mom!”

“No, it isn’t weird at all for thoroughbreds! My first boyfriend was my dad!” She said with a slight blush as she remembered some incestous acts of her past.

Delilah looked over at Chester, then at Shiela, “If that’s fine- Why can’t I just be his… his girlfriend?” She asked, a bit embarrassed.

“We can both be his girlfriends!” Shiela responded quickly, taking Delilah’s hand.

“I have two girlfriends? HELL YEAH!” Chester exclaimed, very excited.

Shiela giggled, “Why don’t you celebrate by running out to grab your younger girlfriend an OJ box?”

He immediately ran out of the sauna, still naked and half erect, with his own cum running down his belly.

“So, mommy- What do boyfriends and girlfriends even do?” Delilah asked, not sure what she had even gotten herself into.

“Well, they hang out, have fun together… Sometimes in more mature ways, like what I just showed you how to do with your brother~” She said, wondering if this would lead to the siblings enjoying each other in the future.

Chester then came back with the orange juice box and handed it to his little sister-girlfriend. He then sat down on the bench next to her and cuddled up to her as she drank the box.

Once they were cuddled up, Shiela removed the towel from Abe’s lap, revealing a very large and erect twelve inches, “So, honey,” Shiela started, looking at Delilah, “Do you want to see another thing that a boyfriend and girlfriend might do together?”

“Yes! Yes please!” She said, very excited.

Shiela immediately put her husband’s tip into her mouth, and once it was in, she effortlessly deepthroated all twelve inches, she was very clearly experienced in this. She was bobbing her head up and down his length. She started to simultaneously fondle his balls. 

Delilah started gently stroking her brother-boyfriend’s member every so often, though not putting enough effort in to get either of them aroused, as they were both quite spent already.

She kept sucking and fondling for another solid three minutes, at which point Abe grabbed her head and forced her down, making her take all twelve inches. You could see the outline of his cock on her neck, and it started pulsing rapidly as he was filling her mouth with his seed.

Once she had swallowed it all, she pulled off of his cock, which was starting to go soft now, “There you go! You suck him off until he shoots liquid into your mouth, which you naturally go right ahead and drink~” She said, intentionally leaving out the option of spitting, as she wanted her daughter to not be a spitter and a quitter.

“That looked fun!” Chester said with a big smile, “Will sis do that to me sometime??”

“I dunno, ask her!” Shiela said and looked at Delilah.

“Yes! Yes I will!” Delilah said, very excited about the idea of getting to do mature things with her new boyfriend.

* * * * *

The next day, Chester was back in school in the middle of class. Pedro was sitting right next to him. Chester then got a text from a contact he had recently changed to “Pretty girlfriend~”

He opened the text, and it was a picture of his mom’s lower half, completely naked and exposed, on top of a hay bale in the stables.. Pedro saw this and whispered, “Oh my god~ I’m sorry I assumed you were lying. She’s hot, by the way! You’re a lucky guy!”

“I know I am!” He simply said, then the two got shushed by the teacher, who fortunately did not hear the details of their conversation.

THE END? (maybe)