My Sister's 7 Days of Shame

Introduction

My older sister Sofia was a bratty popular girl. I hate to admit it, but she was smoking hot and she knew it. She was about 5'8" 120LBs. She had dark features and tan skin. Her hair was long, thick, and straight. Most of her weight was stored in her natural D-cup breasts and toned peachy ass. She had a proportionately skinny waist and a pretty face. By all accounts, she was as pretty as anyone from our town.

Sofia stayed with our parents during the summer. She walked around the house like she owned the place. She was 21 and had already been away at college for a couple of years. I was freshly 18 at the time. She would call me all sorts of names, exclude me from things, and other typical older sibling stuff. Being her younger brother was frustrating. Eventually, I had enough and plotted my revenge.

One night, I planted spyware on her laptop and began digging through photos and texts until I came across a locked folder. I was able to find the password through keystroke history and view the contents. The folder held an MP4 of my sister being fucked on my parent's bed by a guy from her school. If anyone were to get their hands on this, her reputation would be ruined.

Our parents would be gone all week. I decided now was the perfect time to blackmail her with her sex tape. She went ghostly white when I pulled up the video. She threatened to do all sorts of terrible things to me if I didn't delete it. I knew deep down there was nothing she could do to me if I had this tape. I told her if she did not obey me this week then I would send the video to our parents. If they knew that she fucked someone in their bed they would not let her go back to college at the very least. We came to an unspoken agreement. The best week of my life would begin in less than 24 hours.

Chapter 1: Monday

I spent the rest of Sunday night planning my revenge. Seeing her naked and compromised burned into my memory. My parents left us some money and chores to complete while they were gone. I hated cleaning and so did my sister. She normally forced my hand because she was older. This time I was in charge.

I thought up a way to kill two birds with one stone. I decided to make her my maid for the day. She would clean the house in an outfit of my choosing. I made her wear a skimpy maid outfit that I overnighted from Amazon. I bought it with some of the money our parents left us. It was a two-piece set with a thin black latex skirt that had white frilly trim along the bottom edges. The waistline was a tight elastic with white accents matching the other edges of the skirt. The top matched the bottom. It had puffy shoulders with white trim around all the openings. The set came with a couple of accessories. It came with a bow tie choker for her neck, a matching bow collar for her thigh, and a cute black and white headband. I grabbed uncomfortable-looking black ankle-strap heels from my mom's closet. She wore them when she was much younger but no longer used them. There was no underwear with the set and I would not let her wear hers either. I presented the assignment to her once the package arrived.

"What the fuck? I'll clean the house, but I'm not wearing that you horny little shit!

"If you're going to be a maid you should be dressed appropriately. Besides, I think it'll look great on you. I bet it'll be freeing to have nothing on under that mini-skirt. Look, it'll only be for a few hours. I promise I won't send this video to Mom and Dad if you do."

An extreme look of frustration came over my sister. She had no idea what to do. Ultimately, she couldn't afford to have my parents find out.

"Fine!"

She stormed off to the bathroom. I waited patiently until I heard the clicking of her heels head towards the living room. It was hotter than I imagined. She hobbled towards me in my mother's retired shoes. Her tits bulged out of her small top. Her sexy shaven legs were on full display. She constantly adjusted the short skirt in a useless effort to cover herself. If she bent over all of her embarrassing parts would be visible. She gritted her teeth at me as I checked her out.

"Don't look at me like that you punk. Let's just get this over with."

I had one last piece to complete her outfit. Her disparaging words would be put on hold. I walked behind her as she tried covering herself with the skirt. While her mouth was open, I strapped a red ball gag in her mouth.

"Don't try to sneak a peak back there you perv! I'm not some showgirl...mffmm...ughff!!"

She crossed her arms, shook her head, and rolled her eyes at me in disgust. Considering what she was already wearing, the ball gag wasn't a big deal. There were no attempts made to remove it. Instead, she stood there waiting impatiently to get this over with.

She began in the kitchen wiping down the counters and other surfaces. She squatted while unloading the dishwasher so I couldn't watch her bend over. Despite her attempts to avoid revealing positions, I made her clean the floor with a hand brush. I stood over her while she scrubbed on all fours. Her skirt only covered the top half of her ass. The bottom half of her ass and part of her pussy was exposed. Her face was red with embarrassment.

I supervised her as she stumbled around in her heels while vacuuming, taking the trash out, and doing my laundry. I caught her trying to take breaks a couple of times. I met her misbehavior with a surprise slap on the bum. She gave me a mean grin but got right back to work.

We wrapped up the day with my bathroom. She got on her knees while she cleaned my smelly toilet. I had not cleaned it in over a month. My intrusive thoughts got the best of me while she scrubbed my hairy shower floor. I decided to turn the cold water on while she wasn't looking. I heard a muffled screech as it rained down on her half-naked body.

"MHHHH!"

She slipped while trying to escape the freezing cold water. She floundered on the wet floor desperately trying to get out. Her skirt had flipped up leaving her lower body completely exposed. She scrambled to cover herself as she regained her balance. Although she eventually got control of her skirt, I had more than enough time to examine her lady parts. Her pussy was immaculate and her ass was perfectly shaped. I couldn't help, but get a boner. Once she crawled out of the shower, I removed the ball gag. Out of breath, she looked up at me with runny makeup and disdain.

"Congrats, you've gotten your revenge! You can delete that video now. This is much more humiliating than that. My younger brother staring at my pussy while I flail on his bathroom floor. Oh, and your bathroom is disgusting by the way. I can't believe you live like this you animal!"

A light flicked on in my head. Calling me an animal was an interesting choice of words. Maybe one of these days I'll make her my animal.

Chapter 2: Tuesday

After a successful first day, I pondered my plans for the rest of the week. While I found watching her clean in the humiliating outfit I provided erotic, I caught myself wanting more. Staring at her cute ass and bulging tits was such a tease. A slap here or there was simply not enough. I devised a way to slowly work her guard down.

I waited for her in the living room. She eventually emerged from her room with pajama pants and a white crop top with no bra.

"Good morning loser. Don't get any weird ideas today. I'm leaving at 1 pm for Jessica's bday."

I told her I'd be quick. If she cooperated with me this morning, I wouldn't bother her for the rest of the day. She rolled her eyes but heard me out.

"I want you to take those pants off and get over my knees. I am going to spank you for bullying me my whole life."

"No, the fuck you are not! You slapped my ass plenty of times yesterday. Why don't you grow up and move on?"

"If you won't let me then I guess you can be my maid again. You wouldn't be able to go to Jessica's though."

"Ugh! You're such a piece of shit! Fine, let's get this over with. Do not hit me too hard I swear to god."

"Yes! I promise not to hit you too hard under one condition. When I spank you I want you to count and thank me with a 'Thank you Sir'."

Sofia was in disbelief. She found my demands ridiculous and weird. She mocked me for suggesting she count.

"Do you want me to suck your dick too? I guess I'll just do whatever you say like a slave. You really are sick."

She watched as my eyes lit up. Nothing excited me more than the idea of making her my slave.

"Whatever. Forget what I said. Let's get this over with."

She took her pants off revealing her black lace panties. I bent her over my knees and held her ass in the palm of my hands. I spanked her 20 times. She counted and thanked me for each one. This was the perfect disguise for playing with my sister's ass.

"Whack!"

"1! Thank you, Sir!"

"Whack!"

"2! Thank you, Sir!"

"Whack!"

"3! Thank you, Sir!"

With each slap, I felt her tits bounce against my leg. Her tone gradually weakened until she worked up tears. By the end, her face was as red as each of her cheeks. She slid off my knees onto the floor. She kneeled and winced at me as she recovered from her stinging ass.

*Sniff* "Ok are we done now? I did what you asked can I go?"

Feeling her tits bounce against my leg changed things. I had to seize my opportunity while I had it.

"One last thing! I went quickly as a favor, but I want one from you. I want to see your boobs again."

"Oh, no way! You said this was it! I'm not showing my tits off to my little brother."

"I'm sorry I forgot to say it in the beginning. I've already seen them on video just let me see them one more time! It's not that big of a deal."

She gave me a silent death stare. I could tell she knew what was coming. If she didn't comply, I would blackmail her anyway. Besides, this wasn't as intense as the spanking she just had.

"Fine!"

Her top came off with ease. Her tits flopped onto her chest. Her beautiful nipples hardened. She tied up her hair and held her hands on her head giving me an unobstructed view.

She stared at the ground and blushed. I grabbed at them without thinking. My sister caught my hands before I could reach them.

"Hey! I didn't say you could touch them. Stop it!"

"Oh come on! I just played with your butt what's the difference if I touch your boobs. I'll make them feel good I promise."

Each time she thought she was done I introduced another ask slightly worse than the first. She was a rat chasing cheese. The cheese in this case was preserving her compromised reputation.

"Go ahead, but make it quick! I can't believe I'm letting you get away with this."

I jiggled and squeezed her heavy boobs. She wiggled from the feeling of my active hands. I soon moved onto her nipples. I teased them which evoked moans.

"Uhhh...uh...uhh. Careful they're sensitive!"

Her moans motivated me to create more. I flicked and teased her nipples with my fingers until she couldn't handle it anymore.

"Uhhhh...oh...oh...Ok ok, that's enough! You've had your fun now let me go."

I had gotten what I wanted. Unfortunately for her, it was still early. I didn't want to release her just yet. I decided to make her my footstool until she went to Jessica's.

"I know I said one last thing, but I changed my mind. I'm sorry just bear with me. Since you cooperated I'll let you go to Jessica's like I agreed. Until then, however, I want you to be my footstool."

"I just let you play with my tits half-naked on the floor and that's not enough? At some point, this has to stop. I was joking about the slave thing I can't keep doing this."

The truth is she was my slave and she knew it. As long as I had that video, she couldn't oppose me.

"I promise this is it. You don't have to listen to me for the rest of the day I swear."

She didn't say another word. She got on all fours. Her tits dangled like utters on a cow. Her red ass was covered only by her skimpy black panties. She flinched as I kicked my feet up on her back. I made her sit there for an hour while I watched TV.

As promised, I let her go once the morning had concluded. I was successfully imposing my will on her little by little. If I asked her to get fully naked she probably would at this point. There was not much separation between her and a pet. I decided it may finally be time to give that a try.

Chapter 3: Wednesday

We were now 2 full days into the humiliation of my sister. Playing with her body wasn't enough. I desired complete control over her. I thought more about what my sister said on Monday.

"I can't believe you live like this you animal!"

Pet play had been a sneaky huge fantasy of mine for a long time. Seeing my sister on all fours with her tits out was something I had to see again. I figured it would be a big step up, but I was willing to take the chance. If she went along with being my pet for a day, I am not sure what she wouldn't do.

I shopped around for some accessories that would enhance the experience. First of which was a long furry black tail that draped to the ground. I got the smallest metal plug for it to make sure it would fit in her ass. I bought a ring gag that would reveal her pretty pink tongue and force her to drool. I bought black cloth mittens with matching knee-length black socks. They both had pink paw prints on the hands and feet which I found super cute. My sister already had black cat ears from Halloween last year. I already had a black leash and collar from dogsitting the neighbor's dog. With this, I had everything I needed to make her my pet.

I awoke early to retrieve the goods. As usual, my sister emerged from her bedroom in her PJs as I waited in the living room. She had a more sheepish look than normal.

"Good morning Jimmy. Did you sleep well?"

She was being nice to me all of a sudden. I guess my plan was working. We had a positive conversation about Jessica's. For a moment it felt like we were friends. I quickly realized she was trying to distract me. If I felt bad for her maybe I wouldn't embarrass her any further. Unfortunately for her, the horny boy in me prevailed. I gave her my plans for the day. She pleaded with me hoping I would change my mind.

"Can I please just do your chores for you? I'd even wear the maid outfit again or let you see my boobs. Please don't make me your pet. I promise I've learned my lesson."

I had her right where I wanted her. My work over the last two days had worn her down. Her willingness to compromise indicated that I had the leverage. I insisted that she would have to follow my rules.

"I'm sorry, but your boobs are not enough for me anymore. They weren't as nice as I thought they'd be. Besides, I'll get to see them anyway if you're my naked little kitty."

I presented the equipment I purchased. I withheld the tail for now. I took things one step at a time to avoid overwhelming her.

"I'll wear this stuff, but can I please wear underwear? It's embarrassing enough having to be your pet. I don't want my pussy hanging out on top of it."

My sister begging me to wear clothes was outrageously sensual. Her combativeness had faded. Things would only get worse if she continued to reject my demands.

"Unfortunately animals don't wear clothes. This is payback from you calling me an animal the other day. Go put this on and crawl back to the living room unless you want another spanking."

She bowed her head and left the room. My excitement raged on. Pre-cum lined my boxers as I waited for her to change. This was the ultimate power trip. Finally, I saw her cute little cat ears poke around the corner. Her hands and legs were covered with the black fabric. The ring gag was firmly strapped around her face. Her tongue dangled out of her mouth as a result. The leash connected to her collar dragged across the floor. Her breasts swung as she crawled towards me.

"Now that's what I'm talking about! You're so adorable! I promise to be nice as long as you obey me. I'll turn you back into a human when we're done today."

Her eyes darted around. She had a hard time looking at me from the ground. Her face was flushed with embarrassment and concern. I felt it was time to introduce the plug. To this point, I hadn't put anything inside her. I made sure to save this for last to avoid her backing out. I snuck behind her with the lubed-up plug and slowly twisted it in. Her head swung around in shock. All she could do was moan and groan with the ring in her mouth. She wiggled as I forced it in. She had an incredibly tight asshole. Thank god I got the smallest size. Eventually, it sunk into her. She had tears well up in her eyes and was breathing heavily. I felt a little bad not warning her about the tail up front, but it was for her own good.

Her new look was intoxicating. I couldn't help but pet my new kitten. Her body twitched from my cold hands. I rubbed her smooth naked back while I worked my way around to her dangling jugs. I fondled them to her displeasure. In time, I made my way back to her rear. Her pussy was so beautifully pink. I couldn't help but touch her lips and inner thighs. She continued to tear up as I violated her. While staring at her face, I couldn't help but look deep into her mouth. I stuck my fingers in until I reached the back of her warm throat. She choked and whined until I pulled them out.

"Shhhh! Calm down. You're ok sweetheart. I'll take good care of you."

I got things started by having her lap up some milk. She whined in frustration as I made her drink out of a dish on the floor. I held her leash from behind taking in the scenes of her vulnerable genitals. Her nipples touched the floor as she bent over.

Things spiraled from there. I had her on all fours all day. Her tail swayed with her hips and tits as she crawled at my side. She lay at my feet while I watched TV. At some point, she had to pee. She didn't know how to tell me with the ring in her mouth so she pawed my leg to get my attention.

"Do you have to go potty Sofia?"

She nodded and mumbled. I picked up her leash and had her follow me to the guest bathroom. I set a pee pad down for her so she could pee like a kitten as well.

"Good kittens pee in their litter box. I don't have one for you so this pad will have to suffice."

I placed her on the pad and held her there. I could see the gears turning in her head. Peeing on the floor with me watching was enough for her to throw in the towel. She had given up so much of her pride already it would all be for nothing if she conceded now. She got into a squat and tinkled on the pad. I wasn't sure I could ever top this moment. My longtime bully of an older sister was peeing on the floor like a naked animal while I held her leash.

She sunk back to all fours in shame. I praised her while I gave her a few pats on her bottom.

"Awe you're such a good girl Sofia! You managed to get it all on the pad on your first try!"

I took her ring gag off. I wanted to hear her cry for help after what she just did.

"Oh my god! Jimmy this is way too much! I understand I can't let Mom and Dad see that video, but this is insane. I cannot believe you made me pee in front of you! This stuff is permanent I'll never be able to forget this. Please stop I can't do this anymore."

She shed tears as she begged for her release. I figured I could capitalize on this moment. Seeing the inside of her warm slobbering mouth did something to me. I wanted to feel it with more than just my fingers. My rock-hard penis screamed in my pants hoping to be let out. I decided to escalate things a step further.

"I'm so sorry. I didn't mean to hurt you. I just needed to prove a point. I can end this right now, but I need you to do something for me ok? The other day you asked me if I wanted you to suck my dick. From that moment, that's all I've thought about. It won't take me long. If you blow me I will let you go."