Sandbar walked down his neighborhood road towards his house, as the sun began its journey towards the western horizon on a breezy Sunday afternoon. His saddlebag contained a few new fish magnets for his dorm room fridge, and he had a new Canterlot Aquarium hat on his head shielding his eyes from the afternoon sun. Trotting up the front walk to his front door, he put the key in the door and stepped inside. His dad and mom were there in the living room.

"Hey, son. How was your trip?" His dad asked, putting down the newspaper he was reading on the end table.

"Really cool. They've added a few new exhibits since I was there last." The colt replied.

"We can't wait to hear all about them, but first, why don't you go put your saddlebags in your room." His mom suggested.

"Sure thing, mom." Sandbar said, sauntering past the den and down the hall. He came to his bedroom door on the left, and opened it. His mind was about to do a double take on how his furniture had been rearranged, but then as the door continued to swing open and reveal the left side of the room, his brain nearly shut down completely as his eyes widened and his breath nearly left him.

He felt like he had slipped out of his body as he slowly took a few steps into his bedroom, slowly taking in what had been done.

On the left side of the room, a full-sized adult crib had been set up, a mattress wide enough to fit two or three fully grown ponies. Right next to that, a changing table, with polished oak steps on one end, both pieces of furniture together running the length of the room. The shelves under the changing table were stocked with diapers, wipes, lotion, mineral oil, and foal powder. The diapers were patterned with turtles, fish, and other aquatic life. On the back wall under the window was where his desk and terrarium had been moved. His bed and nightstand had been moved to the right side of the room, and a second twin bed had also been moved in. There was barely enough room for it before the closet, and it made the room as a whole a bit more crowded, but right now that was the very least of Sandbar's concerns as his mind took in what had been done. He was so stunned that he barely heard the footsteps behind him, and he turned to see his dad enter the room.

"Sandbar, son... I had hoped that after you introduced Gallus to us, that you would know that you never, ever have to be ashamed of who you are, especially with your mom and me. Alright?"

Sandbar found it in himself to nod slowly.

"Gallus talked to us after you left for Canterlot, and he's really hoping you're okay with that. Seeing the effort you put into helping him gain Equestrian citizenship proved to me beyond any doubt that you've really grown this past year. And if there's a part of you that wants to take some time to not be so grown, so be it. We may not fully understand it, but Gallus has told us how important this is to you, that this is something you really want to explore, and I for one am glad that you're growing up in a time where less things are taboo and more things are becoming acceptable."

Sandbar swallowed a lump in his throat before any words came to him.

"Wow, dad. I mean... Just, wow. You're really okay with me doing something like this?" He said, his voice still shaky.

"Son, what are the founding tenets of your summer class? What are the acts of love?"

Sandbar immediately recalled what Trixie had drilled into their heads on the very first day.

"Acceptance, consent, trust, and safety." He replied.

"When we saw that back room at Silly Filly, it became apparent that you're not alone. Soothing Care made it absolutely clear that you would remember something like this forever. We don't entirely understand this side of you yet, but we accept it, we consent to you exploring it further, and we trust you to do so safely." Beachcomber told his stunned teenaged son.

Sandbar looked behind him, first to the ageplay side of the room, then to the normal side.

"So, what's the second bed for?" Sandbar asked.

"Well, this entire room is two surprises in one. The left side is a bit obvious. It's your birthday gift, one month in advance. We wanted to give you the space and appropriate atmosphere to explore this part of yourself, and the right side has been rearranged a bit to make room for your new roommate."

On cue, Gallus stepped into view into the doorway and stepped into the room next to Beachcomber.

"No way, really?" Sandbar asked, the excitement in his voice growing.

"Your folks thought I could use a change of scenery away from the dorm room once I start full time in the Castle kitchen."

"Now, have a seat on the bed, Sandbar. There are some new rules that we need to cover." High Tide said. Sandbar looked back to his clean and made bed, and stepped back to sit down on the mattress. Gallus followed, sitting down right next to him as his mom and dad came completely into the room proper, standing in front of the young couple. Sandbar was still staring disbelievingly across the room at the crib and changing table.

"Now Sandbar, we want to just make you aware of some rules. First off, there are no changes to the privacy you've gotten used to. Anything you and Gallus do behind this closed door is your business, and again, we trust both of you to be safe. Everything on that side of the room is your early birthday present, but when it comes to restocking, you're responsible for that. I'm not sure your allowance would cover all of it, so you might want to think about helping Gallus out in the castle kitchen, or maybe going to see if Fluttershy needs help with her pond critters. Secondly, you're responsible for the cleanliness of everything on that side of the room. You're free to wear diapers and role play in here, and if you like, you can extend that to the rest of the house, but there would be a small catch." Beachcomber told his son.

"What is it?" Sandbar asked, a bit nervous.

"Your father and I discussed it at some length, and decided that if you wanted to, we'll treat you like a foal." High Tide chimed in. "No different than Coral. Well, for now anyway. I think your baby sister is getting pretty close to starting potty training. But that means you have to play the part of a foal, too. You have to use your diapers for their intended purpose. You can't feed yourself, and you can't ask for changes; you'll be checked routinely. And obviously, this stays in the house, and absolutely no further. Does that sound fair?"

Another wave of surprise came over Sandbar as it became apparent as his parents wanted to take part in this at least a little. All he could manage to do was nod in affirmation. His mom and dad smiled at him.

"Alright. Well, this is obviously a lot for you to take in, so we'll leave you with Gallus to talk. We love you, Sandbar. We always will." Beachcomber said, coming forward to briefly hug his son and ruffle his mane, before turning and leaving the room with High Tide, closing the door behind them.

Sandbar took another deep breath as Gallus smiled at him.

"Well, that worked out. I'm really sorry that I went behind your back like that, but... I didn't like what keeping it in was doing to you." Gallus said, putting his front leg around his shoulder.

"It... It wasn't just them, you know." Sandbar said, taking another breath, looking across the room then over to his boyfriend.

"What do you mean?" Gallus asked.

"I wasn't kidding when I said I loved the other night more than you realize, Gallus. I wasn't just afraid of telling my parents. I was afraid of what it could eventually do to us." Sandbar said, shuddering.

"What do you think it would do to us? I loved taking care of you like that the other night."

"Like, what if I got really into it? Like really really into it? What if I eventually enjoyed cumming in diapers more than I do cumming in you? I didn't want something like this to come between us." Sandbar confessed, unable to hold in another shudder.

Gallus rubbed Sandbar's shoulder and back as he looked the pony in the eyes.

"Sandbar, creatures change. I doubt Trixie's class is going to get so in depth that we begin to understand the intricacies of why your brain has decided to like something like this. But it doesn't matter to me. All that matters to me is your happiness. Seeing how happy you were the other night when we first tried it didn't change my feelings about you in the slightest. In fact, it made them stronger. So if you want to cum in your diapers more than my tailhole, then I'll get you the thickest diapers in Ponyville. If you want me to rut you during every change on that table, you got it; then when I've got you in a clean diaper, you'll have your seed coming out of one end, and my seed coming out of the other."

Sandbar shivered again as his lips trembled.

"Gallus... Honestly... I-I... I think I could cry right now."

"Well, isn't that what foals do?" Gallus asked, smirking as he pulled the colt into a tight hug. Sandbar buried his face in the fluffy amber down of the griffon's chest, shoulders heaving as he cried softly, letting out the emotions that had been building up for the past several minutes. Gallus was content to sit there holding him, gently preening the mane behind his ears, rubbing his back.

After a few moments, Sandbar parted from the embrace, and took a few deep breaths as he wiped his eyes.

"I don't know what I did to deserve you, Gallus."

"That's easy. You gave me caramel candy and confessed your feelings. Then you pushed me to confront my misgivings about my homeland. Then, you helped give me a home here in Equestria. If anything, I'm not sure what I did to deserve you."

With that, Gallus stood Sandbar up, hugged him again, then led him over to the changing table, where the colt again stared down at the stacks of diapers on the shelves. The griffon reached down to the first shelf, picked up the turtle shell pacifier, and popped it in between the pony's lips.

"Now let's get my little bro into his diaper, what do you say?"

Author's Note

I'm just churning them out today, aren't I?

Thanks for the comments and feedback, guys. It does wonders for my motivation.

One more chapter, then I start work on a small sequel.

Thank you so much for reading!

Love,
Miles