This is also my first story so criticism is appreciated

Before I jump straight into this story, I guess I should introduce myself.
My name is Jason and I'm 13 years old. I'm kind of short for my age, and rather on the skinny side.
If I was to describe my brother I would probably just say that he is the opposite of me. His hair and eyes were dark whereas mine were a bright blonde and blue. His hair was slightly longer than mine and he was also taller and his build was more defined, though that was to be expected as he was about five years older than me. His name was Leon.
Now the tale of how I ended up trussed up to the chair in my father's home office by my brother is probably one that you would expect. It all started with my school breaking up for half term (a week long holiday in the middle of a school term) and him being home from university.
Like any younger sibling I have been known to bug my brother. But it's just what we do! We annoy them because we crave their attention, even if we try to deny it. Each and every morsel of praise I got from Leon would be locked up and stored in my memory and would give me a boost of confidence that I didn't even know I needed.
And so as soon as he got back I instantly wanted his attention and began pestering him to play video games with me, or watch a film with me - anything, just as long as we spent time together.
He on the other hand was already sick of me after only being back for less than a day.
I bugged him for days, constantly asking about university and if he maybe wanted to play the new 'Call of Duty' game later or watch a re-run of 'Top Gear', and each and every attempt would end with him snapping at me, pushing me over or slamming a door in my face.
It wasn't until the Wednesday came around that he seemed to really snap.
I had been pestering him from outside his bedroom door for the past 15 minutes when the door swung open, Leon standing there with a controlled look on his face, as though he was fighting back a scowl.
"Come in then if it'll shut you up," he said, moving to the side to let me in. I instantly scrambled up and hurried inside. His room was the usual chaos that I suppose most boy's bedrooms are; clothes (both dirty and possibly clean) strewn about the room, empty drink cans lying over turned on every surface along with dirty dishes and even a box of half finished pizza.
I stood awkwardly for a moment, unsure of whether I should sit on the unmade bed or perhaps on the floor. Leon cut off my thoughts by letting out an irritaded sigh and shoved me into his desk chair.
On his desk sat a keyboard, mouse and a computer moniter along with the regular disarray and mess found in the rest of the room.
I was almost beside myself as Leon maneuvered the mouse and clicked play on a video that was paused on his computer. It was an episode of 'Top Gear' which I hadn't seen before and was immediately engrossed in the video.
Leon sat down on the edge of his bed and we watched in companiable silence for about ten minutes before he got up and moved behind me towards his chest of drawers.
I hardly noticed as I was too caught up in how horribly wrong the challenge was going for James and Richard on the show. Therefore it was a surprise when my arms, which had been completely limp on my lap were suddenly pulled behind me and the chair. Since I had been off guard, I hardly put up a fight as there was a strange ripping sound and then something cold began to wind around my wrists. It was a few moments before I realised what was happening and began to struggle.
"What the hell!" I yelled, twisting my body this way and that to try and free my hands from the tape that was being wrapped around them. Once they were completely bound, Leon stepped in front of me, dropping to his knees and pulling my ankles together, beginning to bind them before I thought to kick him.
However, even as he finished trapping them in the silver duct tape, I swung my legs up and caught him in the shoulder with my socked feet, causing him to grunt and wobble on his knees.
I prepared to kick him again when he grabbed my feet and pushed them backward towards the pole beneath the seat which connected it to the wheels. He got my ankles as close to the pole as he could and began to wrap tape around them both, connecting them to the pole, restricting their movement.
Throughout all of this, I had been hurling abuse at him, demanding that he stop and let me go or I'd tell dad when he got back from work later that day.
He just chuckled which unnerved me and moved back to sit on the edge of the bed again, pausing the video as he did so.
I struggled wildly in my bonds, attempting to wriggle out of the sticky duct tape while Leon simply watched with an amused smirk on his face. I was writhing so much that I almost knocked over the chair so I stopped, breathing heavily in an attempt to catch my breath.
"Why the fuck did you tie me up?" I asked, my breathing begining to slowly even out.
Leon's smirk grew into a grin as he leaned back slightly and looked at his handiwork. "You wouldn't stop annoying me since I got here. I thought I deserved a day without you pissing me off and since you can't seem to keep your distance I thought I'd help you out."
"How is tying me up in your room going to keep me away from you?" I asked with a raised eyebrow.
"Oh, you won't be in here for long," he said, still grinning. "Why do you think I taped you to my wheely chair?" He asked.
Like descending into an icy bath, it hit me. My brother had finally hung out with me, only so that he could catch me off guard and get me away from him easier. Hurt and anger boiled within me, but I was shaken out of my angst by Leon talking.
"But before you go anywhere I'll have to shut you up." He pulled his right foot up to rest on his left knee, I guessed it must be comfortable for him. It was his regular relaxed position now-a-days.
"How are you going to shut me up?"
"Have you ever heard of a gag?" He asked, tugging off his right trainer and dropping it to the ground.
"No." The word wasn't familiar to me.
"Well, it's a way of obstructing a person's mouth to keep them from talking." He was now toying with the edge of his sock. From where I was sitting I could see the sole of the black fabric was slightly darker with sweat than the rest of the material.
"Like in the old detective shows Dad watches sometimes?"
"Yeah, exactly like that." He says. My forehead creases with confusion as he peels off the sock on his foot so that it is now inside out. The smell of his sweaty foot has now begun permeating the room.
Oh no. Horror dawned on me as a thought crossed my mind. He wasn't thinking what I thought he was thinking was he?
It seemed that he was as he began to ball up the sock, taking care to position the toes and sole of the sock on the outside before leaning in towards me, his grin blinding with glee but also sharp with mischief.
I pulled my head back instinctively and clamped my mouth shut but that just seemed to make Leon smile more.
"Come on ickle Jacey," he cooed. "Open up for brother Leon." The damp cotton came into contact with my nose and mouth and I coughed in repulsion, refusing to allow it entrance.
Still grinning, Leon simply took a hold of my nose and pinched it shut. I held onto my breath for as long as I could but inevitably it was a lost cause. My mouth opened and my own brother's sweaty sock was crammed into my mouth.
I gagged on the taste and tried to pull back in disgust at the musky and salty flavour which bathed my taste buds.
Instantly Leon reached backwards with one hand and returned with the tape. In a second he had pulled the end of the tape free of the role and then stuck it to my lips. After plastering it in place he began to wind it around my head and lips again and again until he was absolutely sure that there was no way that his sock would be getting out of my mouth.
Leaning backwards once more he inspected my gag as I 'mpphed' and cried out into his sock.
The taste was like nothing I had ever experienced before. I had often smelled my brothers feet before, he would force me to smell them when we were younger, but I had never tasted them and I hoped I never would again once this day was over.
Satisfied with his work he stood and, after removing his second shoe, grabbed me and the chair and began to wheel me towards the door.
I continued to protest into the wet material as we moved across the landing towards my room, Leon constantly making remarks like 'I wore those socks for almost a week, I hope they don't taste too bad'. But when we reached my room and continued past it I became silent for a moment as I was sure he was going to take me to my room and leave me there.
Instead we continued to the next door over. Dad's office. Leon opened the door and wheeled me inside, pushing me towards the desk. He took hold of the chair already in place at Dad's desk and pulled it out, replacing it with the chair I was bound to.
Once I was safely situated against the desk he turned on the computer and logged onto the guest account. He then opened the internet and brought up youtube and typed in 'Justin Beiber 10 hours.'
I instantly began to yell into my gag once more. No way could I handle being forced to listen to him for that long.
After selecting the video and turning up the speakers, Leon turned to leave, grabbing our Dad's chair and wheeling it out.
"I'll be back to check on you in an hour or so. Have fun!" And then he was gone, shutting the door behind him.
I screamed and yelled into my foul tasting gag, my ears assaulted by Beiber's voice and my taste buds assaulted by my older brother's foot sweat. The very idea of his foot sweating into the sock now locked in my oral cavity made me feel ill and I would fight harder to try and rid myself of the offensive material.
I'm not sure how long I stayed tied up. Leon would appear once or twice but only to stick his head in and check I could still breathe before leaving.
I must have dozed off, though I'm not sure for how long, because when I woke up, the sky was darkening outside. I heard movement outside the door and prepared myself for Leon's arrival, but was surprised and then embarrassed to see that it was not my brother who was at the door, but my Dad.
He seemed to be frozen with shock but eventually shook himself out of it and moved towards me. He reached out to my face and began quickly and efficiently removing the tape, becoming gentler as he got to the last layer. Once it was all pulled away he helped in removing Leon's sock from my mouth.
"What happened?" He asked, pausing the music still playing from the computer.
I could tell he was worried that I was hurt, but given the music that was playing I assumed he had an idea that Leon had something to do with it.
"Leon," I croaked. Being gagged for hours had really dried my mouth and right now I was dying for a drink.
Dad's face seemed to cloud over with anger and he turned towards the doorway and shouted for my brother. There was a loud 'thump' as though something large had fallen over.
In a matter of seconds Leon appeared at the door. His dishevelled appearance and stuck up hair pointed to the fact that he too had had a sleep.
"Why is Jason taped to your chair in my office and why did he have a sock in his mouth?"
"Erm." Leon seemed extremely nervous. As would I have been if I was on the recieving end of Dad's angry voice. "Well he wouldn't leave me alone so I just thought I'd get him out of my hair for a bit."
As he spoke Leon's voice became more and more unsure and quiet, while Dad's expression grew more and more angry.
"Go down stairs and get your brother a glass of lemonade from the fridge and bring it up while I carry on untying him."
Dad's voice was cold and hard as stone, and Leon didn't need telling twice. Once he'd left Dad turned back to me, he reached into one of his desk draws and pulled out a pair of scissors and began to carefully cut away at the tape.
Leon returned with a glass of lemonade and set it on the desk before Dad told him to go back downstairs and wait for him.
After Dad had removed all of the tape from me and the chair he gave me the glass and made sure I drank it all. He told me to go to my room and that he'd bring me another glass in a minute.
Exhausted I didn't argue and dragged my aching body to my bedroom and threw myself down onto my bed groaning. Being bound in a sitting up position for that number of hours had destroyed my back and arms.
My dad came back with another glass and left it on my bed side table. I was drinking it as he left, trying to wash out the vile taste of sweat and dirt of my brother's socks.
Not soon after I lay down and fell asleep.
The next day Leon apologised and seemed much meeker than usual. I'm not really sure what Dad must have said to him to make him him so quiet, but he certainly wasn't so snappy at me any more and even watched a few episodes of 'Top Gear' before we went bacl to school and university.
All I knew was that the song 'Baby' by Justin Beiber always leaves a dirty taste in my mouth.