Spike looked from left to right to check if Twilight had returned, he kept himself still and tried his best not to breathe out loud so that he could hear the quiet clopping sound of Twilight's hooves as she came in through the front door. He leaned forward and reached out for the pack of diapers, he extended one of his claws out and flawlessly ripped open the packaging without damaging the diapers and pulled one of the undergarments out.
Feeling the soft plastic-y smell of the diaper made his heart and stomach tinge with confusion, happiness, fear and even joy, he stood up and with his spare hand, he closed the wardrobe. Forever hiding the rest of the diapers until they were needed again, Spike had been waiting for this moment for a long time, he had always wanted to wear diapers even since he was such a little dragon, even littler than he was now. But it wasn't his choice that Twilight and Princess Celestia wanted him to be toilet trained as quickly as possible for the future lessons and assistant-hood, but now it was time to indulge himself and begin to work on what he always wanted: his lost childhood.
The dragon messed around with the diaper until he opened it all the way up, he let the undergarment fall open as he walked over to Twilight's bed and climbed up to the top of it, he placed the diaper down on the bedsheets and then proceeded to lie down on top of it. He felt his scales rub against the soft absorbent material that was on the inside of the diaper, he was in bliss, he had never felt something so soft and comfortable before in his entire life.
As he went through this simple process, he couldn't help but blush. There was a part of him that told him wearing diapers was bad, that he was a big-dragon and he didn't need them, but there was another side to him that wanted to wear them. He couldn't help himself but lean up and grab the front of the diaper and pull it over him, now with the front and back of the diaper in place, all he had to do is tape himself together and the diaper would be complete.
The reached over to the left side of the diaper tape and grabbed them, he streteched them over to the front of the diaper and they perferctly managed to stick to the front of the diaper itself. Spike smiled amiss under all of this quick-fire stress and mix of emotion, he then did the same with the other side of tapes and found himself completely diapered.
He stood up for a moment to embrace himself as he felt the diaper hug his scaly back-side, feeling like the true infant he never was. He tried to walk over to the edge of the bed, but it seemed that the diapers that Spike had bought were much thicker than he originally realised. The dragon began to waddle like a true infant struggling to walk as he jumped down from Twilight's bed and walked over to the mirror, his stomach felt like he was going to throw up. Something inside of him didn't like being in diapers, but the other side was in pure bliss.
He stood infront of Twilight's mirror to get a good look at himself, he saw a young baby dragon wearing an incredibly thick diaper. He couldn't help but childishly giggle at this situation, he raised his claw up into the air and shoved it in his mouth just like a pacifier.
As he turned around he saw...