Ben squirmed under his covers and he could feel the thick diapers rubbing against his cock. He was still horny from the earlier excitement, and despite having an anal orgasm, his penis was still wanting to be stroked and played with. His arms being tied down beside him not only added to his sexual frustration, but reinforced his position under the heavy blanket. 

          He was beginning to sweat, and the thought of having to be under these covers for any longer made him start to involuntarily thrash around again. 

          His brother, Jake, was sitting on the nearby bed and he could see sweat appearing on Ben's face. Jake stared with intent, thinking about what he would do to Ben next, after his "nap time" was over.

          After some time, Ben could feel that his shirt and socks were saturated with sweat. The feeling of his clothes sticking to him wasn't the worst of it though, as his bladder began to feel full. His mind raced at the thought of having to use the diaper taped around him. Distracted by his panic, he didn't notice when his brother approached the foot of the crib.

          Jake lifted a panel and revealed access to Ben's feet. Unable to look down at his legs, Ben strained his head against the strap to see what his brother was doing. Jake lifted the blanket off of Ben's feet and revealed the smelly socks underneath.

          This being the first opportunity that Jake had to do such a thing, he leaned in and took in a deep sniff. The smell was intoxicating. He became lost in his ritual and spent several minutes worshipping his brother's musky socks. He probed his nose deep between Ben's toes, savoring the almost sweet musk.

          Eventually, he was satisfied and set back to work. He slowly and teasingly removed Ben's socks and set them aside for use later. Jake's intentions then became clear to the younger boy, and he tugged as hard as he could to try to get his exposed feet away from the impending torment.

          "I noticed that you were being shy about using your diaper, so I'm taking it upon myself to give you some encouragement." Jake patronizingly said.

          Using his powers of omnipotence, Jake was able to immobilize his brother's feet so that he couldn't even wiggle his toes. The restrained boy was confused at his new inability to move his feet, and could even feel his toes being magically spread back to reveal his most sensitive area.

          Ben was ticklish. Very, very ticklish. The short prodding that caused him to laugh and open his mouth for the pacifier gag earlier was going to seem like a pleasant memory compared to the coming torture.

          Jake ran a finger from Ben's heel, along his arch, and ended under his toes. This caused the young boy to squeal through his pacifier. The realization that his body was more sensitive than usual also struck him in that moment. The time he had spent sweating in his socks caused the skin on his feet to become softer and more ticklish.

          After the cursory teasing, the tickling began in earnest. As Jake wiggled his fingers along Ben's soles, the boy screamed as loud as he could around his gag. Seeing this, the older boy smiled to himself and redoubled his efforts. "Tickle tickle, little Benny! That's right, babies like you can't help but to peepee in their diapers! And if you feel like holding anything in, my tickles will help you to let go! Good little boys use their diapers fully and completely before they get a change!" He took hours to explore every inch of his brother's adorable feet, and spent extra time tickling under his toes.

          By the time it was done, Ben was sweating even more under his blanket, and spasming against his restraints. His diaper was now soaked, much to his brother's satisfaction, after peeing himself several times. His mind was in a state of torpor, and the tickling had left him exhausted. 

          "Let this be a lesson, baby brother. If I catch you not using your diapers, I'll be forced to tickle you like that again. Maybe for even longer next time. And I'm sure you'd rather not have to go through that again."

          Jake put the boy's stinky socks back on him and covered his feet up with the heavy blanket once more. "Time to get some more rest before the next step of your training, Benny. Nighty night, my ticklish baby."

          Ben, unable to respond, fell into a sleep born of his exhaustion, and Jake laid on the nearby bed. The omnipotent elder brother didn't need to sleep, and so he watched his sibling through the nearby crib's bars. He used his power to speed up time, and as the hours sped by, Jake imagined all the fun that he would have with the next step of his brother's reeducation.