Work and play

I went in for my formal interview to become a police officer that week. It turns out they'd already started my background investigation, talking to my aunt and they talked to Cassidy during my interview. It sounds weird, few other jobs do a background check this way, but say whatever you want about the state of policing, this actually is a good way to check on candidates. Perhaps the only way to really know someone's character, actually. Maybe someone who has a good credit score and a clean arrest record is a good person, but they could also be a bad person who knows not to step on the cracks too obviously. If you talk to the people who know them, though, it's usually pretty clear if someone is to be trusted or not.

The idea of investigators talking to Cassie was mildly horrifying, but by then I knew her brattiness was just for my amusement. She was perfectly capable of being respectable if she wanted. I couldn't tell her what to say, since interfering with the investigation is a sure way to flunk it, but she told me she said I was a fine upstanding brother and I believed her. Well, I believed that's what she told them, at least.

I was worried about getting fired from my bank job. That was a terrible look. But I'd worked several jobs before it when I was in college, I just hoped they'd understand the bank thing was a fluke, the only blemish on my record. Other than fucking my sister, but they'd never know about that!

I had realized, for the record, the problem of a sadist applying to be a cop. Looked at with just those two points of data, it's obviously a terrible idea. But clearly what I did was Cassidy was consensual and that was the only reason I did it. I'd never even been in a real fight before, just training at a mixed-martial arts gym. I didn't feel like I'd get an iota of pleasure from hurting people outside of the very specific situation with Cassidy. I was okay with what I was doing, and so was she.

I was expecting to hear back one way or the other in a week or so. In the meantime I was helping Cassie with her stream, she was sleeping in my bed, and we were sharing our lives together. We didn't do punishment scenes every day, her body couldn't take that, and we sometimes had vanilla sex. Even if it didn't excite us the way pain did, I mean, it still felt good. It felt straight to just have sex with my sister with no pretense at it being punishment... we were clearly having incest at this point. But it felt great and we just didn't care that everyone else in the world would think it was sick.

Despite how close we were, and how much sex we were having, we still didn't quite have a boyfriend/girlfriend, lovey-dovey relationship. Cassie was either in her professional mode for work-related stuff, or being her old bratty self and flashing me her butthole at every opportunity. Not that I minded seeing her butthole for the 2,000th time, and I suppose I could do without the mushy romantic stuff if she could. She was the girl and supposed to be the one who needed the sappiness, right?

Instead what seemed to make her happy was looking at her bruises. I'd catch her looking at her purple and blue butt in the bathroom mirror, and once her nipples healed from my carpentry clamps she seemed a little disappointed that they were no longer aching. I don't know what happened to make her love pain, I'm sure a psychiatrist could give us some mumbo-jumbo, but it's not like Cassidy had a traumatic childhood. Our parents were great, they never even fought in front of us, let alone harmed us physically or emotionally. Cassie terrorized me when we were kids, not the other way around. I think she was just into pain in an innocent and harmless way. She said it took her to a deep and amazing place. As long as we were careful, there was no need to worry about her perverse interest too much.

That Saturday she got invited to go smoke weed with her friends but stayed home with me instead. We got up leaves, or I should say, I blew leaves into piles and Cassie jumped on them like a kid, then when I yelled at her she put them into yard bags. It felt wonderfully wholesome to do yard work with her on one of the last nice fall days and after we finished we grilled chicken and corn on the cob in the back yard.

For some reason Cassie didn't like me getting all romantic, but we felt darn near like husband and wife on that fall afternoon, spending our time together in the back yard and not needing anyone else in the whole world to keep us company. Even though she called me a moron if I ever said anything too romantic, the afternoon spent together so quaintly clearly put her into a horny mood by the time it got dark.

"Do you have any new ideas for the stuff from Dad's workshop?" Cassie asked casually as we finished the dishes after dinner. We'd been using the gear from the workshop for improvised bondage fun, and even though some of it was rather brutal on my sister, here she was asking for it herself rather than waiting for me to bring it up.

"What a pain slut," I said with a chuckle.

"Shut up, Moron!" she said, but was giggling herself.

"Yeah I've had a few ideas," I said, "Mostly ways to tie you up and restrain you."

"But I've got a secret weapon," Cassidy said.

"Oh, what?" I put the last dish on the drying rack.

"I just told you, moron!" she said. I turned my head to see her bent over, jeans and panties pulled down, flashing me her very familiar butthole. "_BUTT _I've got a secret weapon! Pay attention!"

"Mmm hmmm," I said. Why did I always fall for her silly setups? Oh, I know why: I love my sister's bratty ways. "Maybe I'll fuck you there when I have you tied up tonight. Not like you'd have anyway of stopping me."

"Asshole!" she said, but she sounded more excited than offended.

"Exactly," I said. She ran off impudently, but I knew that just meant I'd have to get ready and find her. It was a lot more fun like that anyway.

I got a bag and gathered some potential toys from the workshop then looked for Cassie. Her room was empty save for a crude drawing of her butthole in lipstick on the mirror. You know, she'll be 19 soon... maybe she'll finally mature a little bit. But would I even like her as much if she did?

The kitchen and living room were empty too. I went in our parents old room. We'd hardly ever been in there as kids, and I had only gone in a few times since Dad's death to make sure everything was okay and nothing was leaking in their bathroom. The whole place felt very parental, with thick beige carpet, heavy drapes, a king-sized bed with a purple duvet, some photos of Mom from over the years on the wall, and not all that much else except old furniture, solid wood and deeply varnished. I'd never even really looked through the room. I supposed there might be secrets in here. On a lark I looked in a few stereotypical hiding places like the top of the closet shelves and behind the clothes, but I didn't find anything. It would have been amazing to find Dad's whip and Mom's collar, and learn they had a D/s relationship like Cassie and me... but I guess real life's not that poetic. Besides, it was their own business, not mine.

Out of places to look, I went down to the basement, checking carefully for buckets positioned to drop on my head when I opened the door and other trademarked Cassidy pranks. But there she was in stretchy black shorts and a tight pink top playing Geometry Wars, a mindless favorite from our childhood. I thought about joining her, but having to track her down to punish her was firing up my sadistic urges.

I walked up to quickly and grabbed Cassie by her fire red hair. I didn't truly yank her like a cave man dragging a woman back to his lair, I just made it clear that she was coming with me.

"Oh! Jerk!" she said. I smirked and kept pulling her with me. Our basement is finished, in that Dad and I spent two weeks one summer putting up drywall, a hung ceiling, and cheap but comfortable berber carpet. It's nothing you'd see featured on HGTV but the whole idea was to create a cozy space to hang out without spending much money. There's a TV and couches by the stairs but we just made on huge room and the back of it is more open, with some exercise equipment and bookshelves to the side.

The open space suited my purposes for tonight. I slid aside two of the ceiling tiles to reveal where I'd put together a rope harness of my own design, letting it drop down now from where it was fastened to a joist above.

"What the hell is this shit?" my bratty sister, wiggling around to try to get away from my rocky grip on her hair. Ah yes, we were in the maximum brat phase, I would have to tame her as always.

"Something I rigged up which I thought would be fun," I said.

"Who are you, McGuyver?" she teased.

I slapped her cheek. It was an impulsive thing, not that I was actually offended at her specific insults, but I just didn't like her making fun of me. I instantly thought I'd gone too far, I certainly hate the idea of hitting women except in the kind of play we do together. But even then I thought this was too much.

Silenced, Cassie looked at me, then her eyes lit up. "Asshole," she said, but she sounded excited.

"Undress, slave," I said, "Or I'll hit you again."

Even if it was such a terrible way to treat a woman, it felt like Cassie was on the same page as me. She gasped at my words and felt her cheek, which I'd slapped hard enough for her to take seriously. She started to undress, tossing her house clothes on the basement carpet.

"Damn Cassie, forget something?" I pointed to her pussy, where pubic stubble had grown in.

"I've been busy with streaming!" she said, about to insult me, but then she looked at my hand. "Sir."

"You know we can stop this whenever you..." I said.

"No! Keep going!" she said desperately, "Go ahead and hook me up in this crazy contraption of yours."

I laughed. Well, if she was into being treated like this, I was definitely into treating her like this. I put her in my rope harness, binding her hands above her head and lifting her a few inches up so she had to stand on tip-toes precariously, as I intended.

Now I had my beautiful sister naked and hanging from the ceiling, her arms bound over her head.

"I like you in this position," I said, "How do you feel about it, Cassidy?"

She glared at me, evidently embarrassed to admit she liked it too.

I took the wooden paddle out of the bag and whacked her left tit with it like I was swatting a fly. Then the right. She grunted, trying not to yell out in pain.

"Well?" I asked.

"I like it too," she said, then hesitated. "Sir."

"It's okay Cassidy," I said, stroking her hair, "No one but me will ever know you're like this. It's okay if it's just between the two of us."

"Okay," she said, sounding reassured. "I'm fucking wet."

I laughed. "I'll take care of that eventually, if you're good," I said, "And you'll take care of me of course." I stroked her hair again, then undressed. I wanted her to see that this was making me hard. I paddled her tits a few times until she cried out in pain and the skin was bright red, but I didn't want to risk doing real damage so I put the paddle down.

"Hmmm," I said, "What should I do now? Hit you more? Choke you? Rape you?"

She gasped at my cruel words, then looked at me excitedly.

"Well, I can do whatever I want to you in that position," I said, "But I don't even want to hurt you. You're so beautiful, Cass."

She smiled, surprised, but liking that. "Can I have sex with you?" I asked instead.

"Y-yeah," she said, "Of course, Master. You can do anything you want to me."

"My tamed brat," I said, smiling in triumph.

"Yeah yeah," she said, feisty until the end, "Please fuck me, Sir."

I kept her on the ropes, which pleased her just fine, and lifted her up with them, then down onto my cock under her. I'd hoped it could be used this way. It was awkward as hell, but she could support herself against me and lift her body up and down on my cock by pulling herself with the ropes. I had to stand still and let her fuck me, but it was wonderful to make her do all the work even though it hurt her wrists - I could see her wincing from it, but she kept going. She took me all the way inside her and looked at me lovingly.

I kissed her on the lips as she fucked me.

"Choke me, Mike," she said, "With the rope."

There was lots of extra rope dangling down so I wrapped it around her neck as she took my bare cock in and out of her pussy with each painful movement. I guess she needed the choking to get off, or wanted it at least. It turned me on all the same so I positioned the rope high on the neck where I wouldn't hurt her, and started to tighten it.

Choking my sister was turning me on, and her bare pussy on my cock was too much. I wasn't going to last long.

"Tighter," she gasped. I knew I should have held back, but it was so hot that she wanted this even more extreme. I tightened the rope. She let go of her own ropes, sinking all the way down on me. She moaned in an orgasm as she gasped for breath. All I could think about was how beautiful she sounded as she tried to breath and looked at me intensely, not asking me to stop. My cock was entirely inside her warm, wet pussy. I started to cum and Cassidy closing her eyes in excitement as her body shook. I made myself pull out so I didn't knock her up, well, I had shot one rope inside her but I'd worry about that later.

I shot my cum on her pubic mound, then realized I was still choking her as I'd been enjoying my pleasure. "Shit," I said, letting go of the rope instantly

Cassie lay there in the harness. She was out cold.

I got Cassie down in a panic and carried her naked body to the couch. She still had a pulse, but I felt like a monster. I didn't know what else to do so I got a glass of cold water from the basement sink and poured it on her face.

She slowly woke up in my arms, looking at me lovingly.

"W-what happened?" she asked in confusion.

"I..." I said, "I accidentally choked you out."

"Oh," she said, "How long was I out?"

Time had become a blur. "Just a minute, or two at most."

"Oh," she said. "Everything's real foggy. Were you trying to kill me, Mike?"

"What? No!" I said, hurt by the accusation, even though it felt like it was just a product of her confusion, "You told me to choke you. I'd never... ever... try to do that to you."

"Sorry," she said, "My head's just a mess. I've got a monster headache."

"Oh," I said, "Ummm, I'm sorry."

"It's okay," she said, "Apparently I asked you to do it." She didn't remember? I held her in my arms for a while, but she didn't seem to be getting much less groggy.

"Maybe I should go see a doctor," she said eventually.

I blinked. I knew if we went to the emergency room, there would be a lot of questions. I was sure Cassidy wouldn't try to get me in trouble, but it would still look bad. If the police found out, which they probably would, there was no way I would pass my investigation and get to become a cop myself. Cassie was breathing normally and seemed fine, maybe she'd be okay without medical treatment.

I had to decide, and fast.