I took revenge on my sister when she caught me spying on her…. by cumming in her mouth that night. [My Sister Koda – 1]

“What are you doing?! Get out!” My sister, Koda, exclaimed. Her arms covered her bare chest, and she gave me quite the death stare.

“Okay, okay, sheesh! I’m sorry!” I responded, and shut her bedroom door quickly. I stayed on the other side of it, and exhaled with the sudden, high energy of the moment.

“Knock first! Fuck,” I heard her say from the other side of the door. She came up to it and promptly locked it so I couldn’t come back in. Now, she wasn’t supposed to use that language in the house, just like I wasn’t, but obviously from her perspective I had accidentally walked in on her changing. In truth, it wasn’t so accidental…. But, well, I hadn’t planned on being caught, either. I was in the wrong, but I was still mad at her for it.

“I’m sorry! I’ll just tell you later.” I turned and began to walk away. My cheeks were a little warm, half from the embarrassment of getting caught, but also from frustration. I think it was that moment that really sparked the want for revenge. I had seen her changing once or twice before this, and it had all gone so smoothly. Clearly it was HER fault I got caught this time. So she’d pay. And luckily I knew just what I could do about it.

Koda had a tough time sleeping sometimes. She complained to our parents about it, and though I was pretty sure it was because she drank energy drinks like water, they managed to get her some prescribed sleeping pills. They were pretty strong, but dosed well enough that she was able to get up in time for school. She was groggy when she woke up, but more importantly for my purposes…. She slept like a fucking log. You’d have to slap her in the face to get her up when she was on those pills. And so it was later that night when I’d make my move.

I waited until my clock showed 1am. I was tired, my eyes hurt a bit… but there was no way I was sleeping. I was too excited. This wasn’t just stealing panties from her anymore. This was going to be bigger. A bigger risk… but god, it was going to be worth it.

I snuck out of my room wearing just my boxer shorts. I already felt nice and big and firm down there (though not fully hard) from the excitement and anticipation, but I kept myself in check for the moment. I first snuck up to mom and dad’s room to see if they were asleep. I confirmed it with a few seconds of holding my ear up to the door and hearing their snoring. Perfect. I then went to the hall bathroom to make a decoy, just in case. I turned the light on, then actually locked the door before exiting and shutting the door. The knob was one of those ones with a little hole in the outside knob, where you could stick something like a nail in to push the pin to unlock it. That way, I could hide if need be and the door would be locked, but I could easily undo my decoy when it was time to get back to bed. All my preparation complete, I set my eyes on Koda’s door and crept towards it.

I opened it slowly, using only the nightlight from the hall to see inside. Her curtains were parted, letting just a bare minimum of light inside her bedroom. I got inside and shut the door slowly, holding the doorknob to close it all the way before I let the knob go to actually shut the door completely. This was a stealth mission. I then turned and began to walk slowly towards her bed. I walked on the balls of my feet, transferring my weight back and forth and using the carpet to muffle my feet. Slow and steady. I briefly considered detouring by her dirty clothes basket and getting some “assistance,” but I wouldn’t be needing it. My big boy was ready to go, all by itself.

Finally, I stood before her. She was in the perfect position, too- she was rolled on her left side, facing her bedroom at large. This meant that, had her eyes been open, she would see me…. And this made my heart pound. And, consequently, my dick throb. I disrobed right there, beside her bed. My erection popped free from my underwear as I slid them down my legs, and stepped out of them. I came even closer to her bed, my legs now maybe six inches or so from her mattress. It was go time.

I stood over her, and began to masturbate. My hand glided up and down my smooth shaft, and I closed my eyes. I kept myself quiet- a practiced skill- and bit my bottom lip. I began to fantasize of the most wonderful things… And, I’m not ashamed to admit, they were things that involved her. I had been watching her for some time. I still remembered the first time a week or two ago I caught her changing. When she bent down to pull her panties up, I caught a glimpse of her pussy…. She shaved it. I hadn’t personally shaved yet, as I didn’t feel like I needed to, but she…. She did. And I remembered too when I smelled her panties for the first time. God, that was such a good smell…. That time I nearly blew my load way too early. But stealing her panties had become an old trick by this point. I got really good at stealing a pair, jerking off into them just to see what my cum looked like staining them… and then washing them with my own dirty clothes and sneaking them back into her room before she ever realized.

I snapped back out of my fantasizing dream when she snored. I almost had a heart attack, but it was exciting. I looked down at her sleeping face, her eyes closed…. And her lips parted. Oh fuck. It was better than I ever could have imagined. And right then and there, I knew I was going to make her take it in the mouth. She’d never know a thing.

I experimented while I jerked off beside her. I tried crouching down, and even got so bold as to put a hand on her bed to support myself as I leaned down over her head. I had to get it just right. I didn’t want to leave a big mess, otherwise it would give me away, and she might even go to mom and dad. The thought scared me, so I made sure to do my research. I figured if I spilled a tiny drop it would be okay…. She might think she had drooled in the night or something. I felt a surge of pleasure, and my orgasm fast approaching. I closed my eyes and edged it twice, biting my lip and closing my eyes. Each time I nearly went off the deep end, I groaned softly, the only sound in the room, but I kept myself from doing it. The end of my dick, just before the head, was sensitive. I was primed and ready to go. After edging and playing with myself in this incredibly dangerous situation, I could summon an orgasm at will. I looked down at my sister’s face one more time. I was going to cum in her mouth…. Oh fuck….

I leaned down once again, bending my knees and leaning my feet out. It looked somewhat awkward from the back, I’m sure, but I really didn’t give a shit at that point. I held myself up with my left hand, and leaned right in. With a jolt of excitement stabbing my heart, I touched her lips with the tip of my cock. They felt so soft against me. I moved my hand further down my shaft just to make sure I wouldn’t accidentally smack her in the mouth and ruin the whole thing. I groaned again, a bit louder than I meant to, but it was coming…. It was coming. I was cumming.

The tip of my cock was just barely inside her soft lips. As I stroked myself, it shook her lips a little, but she snored on peacefully, like an angel. I felt the pleasure begin in my groin, spread up and made my cock feel like it was glowing with warmth… Then it throbbed once, twice, three times, then four and five. The first one was almost empty, but the second one, I knew, was a fat load. The subsequent pulses of my cock released less and less cum, but all the same it shot out into her mouth. Quite a bit of it hit her tongue and spread all across it, while some hit the roof of her mouth. I hoped a good shot went straight down her throat. Fuck her. It all would collect in her left cheek, the one laying against the bed. I groaned again, soft and slow, making sure not to give myself away. My cheeks were hot with the evil, taboo thing I was doing, but I watched the whole thing.

When I pulled away, sure enough- a little thin string of cum stretched from my dick to her lips. I leaned back in just to wipe off the tip of it on her upper lip, and I pulled away. My knees felt weak at that point, so I just let them buckle and I sank to the floor beside her bed. I was still touching myself at that point, and finished off by cradling and lightly stroking my balls with my left hand to get that tingly stroking sensation. I closed my eyes and sighed, and let myself come down from the high.

When I looked at her mouth, I realized that there was more than a drip coming out of her mouth. A nice line of cum leaked from the corner of her mouth, down her cheek, and to the mattress. Fuck. Oh shit. Oh, whatever…… I found myself no longer caring. It looked way too hot. It would be worth it. And, what’s more- she fucking swallowed a moment later. It was unconscious, of course, but I watched her swallow my cum while she slept. It didn’t clean up her lip, but she swallowed twice and sort of smacked her lips once, like she had licked the icing clean off a treat. She looked so fucking slutty. It made me very happy. I had my revenge for earlier.

I collected my boxers and began to leave back to my bedroom, after first stopping by the bathroom. I felt almost sure I’d be awake long enough to jerk off again. It was THAT good.

Oh, and just for the occasion, I stole another pair of her dirty panties too.

They smelled perfect.

Source: reddit.com/r/Erotica/comments/ig26mj/i_took_revenge_on_my_sister_when_she_caught_me

1 comment

  1. On your way to jail where someone will do the same thing to you. But you, get to be awake.

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