"Brother," Thor said quietly as he knocked on Lokis bedroom door.

"Yes Thor?" Loki said from behind the door,

"You know why I'm here Loki..." Thor said, looking around to see if anyone was watching.

"Remind me brother," Loki said, Thor could almost hear the sinister grin in his voice.

"I need your help..." Thor answered quietly,

"With?"

"Loki, open the door" Thor demanded

"What do you need from me brother?"

"Loki, please. You know this is an important day, I don't have a lot of time" he said, trying to remain calm. He hated going through the same routine every morning.

"Well you might as well let me know what you need then, brother, so I can assist you sooner"

Thor took one last look around, and whispered: "I need you to change my diaper".

The door opened to reveal, as Thor had imagined, a grinning Loki. He was already dressed for the days event. Thor, on the other hand, was wearing an old pair of pajama bottoms and an oversized shirt hung down to his mid thigh area. Underneath, he sported a bulky diaper, sagging with urine. Thors shirt covered it well, though if one was looking for it and listened well they could hear the tell tale crinkle of the diaper he tried to hide.

Thor always woke up early to be changed into a thinner diaper more suitable for day time, where he would be exposed to more people.

Loki stripped Thor of his shirt and pants, and placed a hand on the front of Thors diaper. "It's good you came when you did, brother, you're almost leaking".

As was usually the case when Loki changed Thors diapers, Thor remained quiet.

"Now lay down," Loki instructed. Thor took his place on the large changing pad Loki had arranged for him on his bed.

"Is it not pathetic," Loki said as he undid the tapes on Thors diaper, "That before Asgards new kings coronation he requires his younger brother to change his diaper?".

Thor averted Loki's eyes and blushed, "Brother, you know the circumstances of this".

"Yes, but, how can Asgard truly be in good hands while its ruler has yet to master the difficult art form that is toilet training?", Loki said with a smirk.

To this Thor had no reply. It wasn't that he wasn't toilet trained. It was that, since he turned 16, he often had difficulties realizing he had to go until it was to late. He'd be wrapped up in a battle, or laughing with his friends and the need of release wouldn't even enter his mind, until it was too late and his pants were soaked, or in worse cases messy.

Loki had helped ail this problem though. Soon after it developed Loki had seen he had an advantage over Thor.

...

"Brother, perhaps you require a little protection" Loki had said one night when Thor had come home after messing his pants while riding his horse.

"Loki, you have no place making suggestions like that" Thor was furious at this idea, he wouldn't accept that he was so infantile as to need "protection".

"And you, Thor, have no place representing the throne of Asgard by walking around with fecal matter in your pants!"

"It wasn't my fault" Thor argued back.

"Then tell me Thor, whos fault is it that you-"

"You don't need to scold me, you should remember that I am the older brother"

"I would prefer not to think of my older brother as someone who often comes home with soiled pants. Now, stop with this foolishness. You realize this cannot continue if you are to be king?"

Thor scowled at him, "I'm not a child, and shall not be treated like one"

"You're right, a child has some control over his bladder and bowels. While you have proven, countless times, that you do not. You, big brother, are more comparable to an infant"

Thor stayed silent, trying to come up with a proper retort.

"You really have nothing Thor. There is no excuse for behavior like this. I would like to think you're merely being careless, but I'm assuming this is something you have no control over" Loki said, almost grinning.

"If I-" Thor started,

"No Thor, this is much beyond your control. If you ask me, I think you should be put back in diapers before such a time that you can control yourself. And I'm sure father would agree" Loki said, now completely grinning at Thor.

"Brother, you don't need to tell father, he doesn't need to know" Thor said, unable to hide his panic.

"Oh? But is this not something that concerns him? Should he not be aware that his son- who is to be king of Asgard- occasionally has such accidents? Do you not think that he would want to help his son?" Loki taunted.

"Loki, please" Thor begged

"Maybe I should tell mother as well, what a nice surprise that would be for her. 'Oh mother, you should know that your son Thor whom you have devoted years of your life to still occasionally wets and messes himself', yes, I'm sure she'd love to change your diapers, feed you bottles, and coo over what a little helpless baby you turned out to be" Loki said, smirking at Thor.

"Brother, what can I do to keep this between us?" Thor said. It wasn't hard for him to realize his brother- the god of mischief- had an alternative motive.

"I will be the one to diaper you"

"No"

"Shame then, I guess mummy wont mind looking after you then"

"Loki, you're being unreasonable"

"Yes, you're right. I suppose it would be better for mother and father to know"

"Loki,"

"You always were their little baby,"

"Fine." Thor mumbled

"What was that?"

"Fine" Thor repeated

"Fine what?" Loki said, his smirk reforming

"You know perfectly well-"

"What do I know, brother?"

"You can diaper me" Thor said, having to force the word "diaper" out

...

And Loki did. Everyday Thor would visit his room before going out.

Though there were few days when he neglected this, when he would go out wearing a soggy nighttime diaper or altogether without a diaper (for they were all kept in Lokis room). Loki would punish Thor with a spanking, and threaten to reveal his secret.

Loki removed the wet diaper from under Thors bottom, "You know, I've always liked the look of you like this. Completely dependent on your little brother"

"Loki, if you just let me-" Thor began

"Don't talk like that Thor, you know diapers are a big responsibility. If you leave them to long you'll get a rash, and if you don't put the tapes tight enough you'll leak- And everyone would see what a little baby you really are. You don't want that, do you brother?"

Thor knew this argument well, and he knew he would gain nothing from continuing it. He let out a sigh, and remained silent.

Loki taped down the last tape on Thors diaper. "There," he said patting his bottom, "You're all ready for your big day".