Sisters Of A Feather

Chelsea threw a change of clothes into her bag. "I cannot believe that disgusting man!" she fumed. "Going after a nineteen year old girl? He's more than twice her age!"

"I know, I agree with you!" I said. "Are you sure you want to confront him alone though? Elsie's place is a pretty long way..."

She smiled at me. "Aww, the big man thinks I can't handle myself alone? Don't worry, I'll run him out of the place. After my sister comes back to her senses, I'll stay for the night to make sure she doesn't change her mind, and to make sure he doesn't come crawling back."

"How did they even meet anyway?"

Chelsea rolled her eyes. "That's the worst part! He sent her a dick pic on insta. Can you believe the gall of some men? An old man flashing his junk at a teenage girl?"

"Jesus!" I said. "How did that not scare her off?"

Chelsea shook her head. "To hear Elsie talk about it, the dick pic is exactly what attracted her to him in the first place. She wouldn't stop talking about how I had to see this picture, that it would blow my mind how big the guy was." Chelsea shuddered. "Like any dick is big enough to make up for the guy being a total creep..."

"I can't believe she broke up with her boyfriend just for a bigger dick..." I said. "Noah must be devastated."

"Well, I can't stop my sister from being a slut, unfortunately." She turned to kiss my cheek as she went out the door. "But I can at least stop her from giving it all up for some guy old enough to be her dad. Jesus, I hope that fucker has the good sense to use condoms... she probably wouldn't argue against him if he didn't."

"Good luck," I said, waving her off.

*** THREE HOURS LATER ***

I logged off my computer, realising Chelsea hadn't sent me a text to let me know how everything went. I was concerned, as Chelsea normally texted me regularly when she arrived. I checked my phone; a couple of texts from an unknown number which I ignored, but none from Chelsea. Sure she must have just forgotten, I texted her. No response. Again. Still none.

Fifteen minutes later, she still hadn't replied. I checked on Find My; she was at Elsie's place. Weird that she wasn't near her phone, though. Maybe she hadn't heard the notification?

I called her number. The phone rang, and rang...

It picked up. I heard muffled sounds in the background, then a young woman's voice. Elsie.

"Michael! How are you going?" she sounded perky, excited. Oh, good. That meant things must have gone well.

"Hey, Elsie. Not bad, how are you guys going? Is everything OK?" I asked.

"Yep," she said. "Everything's great over here!" I heard her giggle. I thought I heard a woman's voice in the background. Was that Chelsea?

"Ummmm... Ok. Could you put Chelsea on?" I asked.

"She's a little... busy right now. Sorry, Michael," she said, laughing. "Call another time, I think. I'm sure she'll get right back to you." Was that a moan in the background?

"What? What is she doing? You're not making any sense, Elsie."

"Have you checked your messages recently?" she asked suddenly.

"Huh? What's that got to do with anything?" I spluttered.

"I reallllllly think you should check your messages right now. Bye bye, Mikey!"

She hung up on me. What the fuck? Fingers shaking, I opened my messages, and stared at the unread texts from an unknown number.

It was a series of videos. In the first, I saw Chelsea in the thumbnail. My stomach doing flips, I opened the video.

Chelsea stood in Elsie's apartment, pointing an accusing finger at the man filming the video. Elsie stood to the side, totally naked, perky titties standing straight out in the cold air.

"You're disgusting," she said. "And I can't believe you either, Elsie!"

"This is your sister?" the man behind the camera said. He had a deep, booming voice. "Damn. She's got nice titties."

"Are you serious?" Chelsea fumed. "Get out of here right now, and turn that fucking camera off!"

"Mind your own business!" Elsie yelled back. "I'm so tired of you thinking that you get to boss me around just cos you're a few years older! I've seen the world! I've got more experience than you, in some ways," she said, gesturing toward the man behind the camera.

"This isn't you, Elsie!" Chelsea said. "I don't get it. What changed? You were so happy with Noah! I was so proud of you, finally moving out!"

"Noah was a small-dicked loser. I didn't see it then because I was young, and I didn't know what I was missing out on. Now I know, and I'm not going back to boring, middle-tier sex where it takes him an hour to make me cum. You'd understand too, if you tried it."

"Like hell I would!" Chelsea spat back. "Get over here right now, you spoiled little tramp!"

"Or what?" Elsie said.

"Or... or I'll freak the fuck out! I don't know! Just be reasonable, Elsie!"

Elsie thought for a moment. A smirk slowly spread over her face. "I think you need an example of what you're missing out on," Elsie said. "How about we strike a deal? You fuck David, and if you still think he's not worth breaking up with a boyfriend for, I'll stop fucking him."

"Holy shit," the man said behind the camera. "Yeah, I don't mind that idea at all. Your sister is like, super hot."

Chelsea looked flabbergasted. She flushed, though with anger or embarrassment, I couldn't tell. "Seriously? You think I'd cheat on my boyfriend just to settle a bet?"

"If you won't, then don't you dare judge me!" Elsie said. "I'm so tired of you looking down on me!"

"Come on princess, don't you wanna at least try the dick that seduced your sister?" the man laughed. "I promise I'm very convincing when I'm balls deep inside of you."

Elsie's eyes lit up. "Yesssss! I can't wait to see that smug look melt away..."

"Fuck you two! I'm leaving..." Chelsea said, turning to go.

"Fine. I'll just fuck your little sister instead. Makes no difference to me." the man chuckled.

Chelsea paused. "I told you when I first came in. I'll rip your balls off if you fuck her again."

"New deal then. Watch me fuck her one time, and I'll go. I'll never come back."

Chelsea turned. "What the fuck? No. I told you, I don't want anything to do with your disgusting dick."

"You don't have to touch it," he said. "Just watch. Cross my heart and hope to die, I'll leave and never come back once I've cum inside of her."

"Absolutely not. Are you insane?"

"Hey, I can always fuck you instead of her. Wanna sub in for your little sis?"

"Fuck off, creep." Chelsea stood, considering. "...you'll really leave?" she asked. "And you're OK with this, Elsie?"

"Awwww..." she said, batting her eyelids at David. "You would really leave my poor pussy without your massive babymaker, just to appease my bitch of a sister? I thought we were closer than that..."

"Sorry babe, but she's a strong woman and she's stated her feelings firmly. I'm too much of a feminist not to respect her wishes."

Elsie smirked knowingly. "Ok, fiiiiiine," she said, putting on a fake pout. "I guess I'll have to make sure I enjoy my last time with you..." Something in her expression told me she predicted David was plotting something very different. She sprung onto the bed and spread her legs wide, revealing her pretty pink pussy, glistening and ready for him. "Get over here, big guy," she said, staring down enticingly at his dick.

The video cut off.

I sat in the dark of my bedroom, shaking. I suddenly realised I was covered in sweat, sitting in a darkened room alone. I tried to ignore the fact that my dick had gotten hard in my pants. Unable to resist, I pressed play on the next video.

Some time seemed to have passed between this video and the last. The camera angle revealed Elsie's tight butt, bouncing on top of a truly enormous dick. Chelsea sat next to the bed on a chair with a grim fascination on her face. I felt a little uncomfortable with how close she was sitting to the action.

"I'm gonna- I'm gonna- I'm about to- ohhhhhhhhhhhh!" Elsie squealed. "Oh fuuuuuck! You fuck me sooooooo hard, David!" A spray of sultry fluids doused the bed. Pussy drool leaked down the massive dick, collecting in a pool beneath his cavernous balls. "Oh, god..." Elsie groaned and the dick popped free from her pulsating cunt, smeared with precum and womanly fluid.

"So, you're done now, right?" Chelsea asked.

"I said I'm done once I cum in her, not when she cums on me," David said. "Hey, how about you help me put this dick back inside her?"

"Seriously? You can do it yourself," Chelsea said.

"Don't you want me to leave? I can only do that once I've finished inside your sister. Come on, help me out here."

Wrinkling her nose, Chelsea reached out reticently to his turgid member. She couldn't even wrap her hand all the way around it. She slipped it inside Elsie again, and wiped off her hand on her skirt. "I don't get how that thing doesn't hurt..." she said.

I didn't miss how her eyes followed his thrusting dick as he started gyrating into Elsie again. The poor, cock-drunk teenager's wails of grateful pleasure began once more, and suddenly the video cut off.

I yanked my dick out of my panks and started jerking. I didn't even have time to think about how fucked up that was; my brain, flooded with endorphins and shame, couldn't resist the sultry, awful display in front of me. I opened up the next video without a second of doubt.

Shocked, I watched my girlfriend taking the man's massive cock in her mouth.

"I have to be honest, I thought that would take more convincing," David chuckled.

Chelsea took the dick out of her mouth long enough to reply. "Shut the fuck up. You know why I'm doing this. I bring you to the edge, and you put it in her when you cum. We all leave, never to see each other again," she said, returning to work on his dick.

"Jeez, sis... you're even better at this than me!" Elsie said from off-camera. "Who knew you were such a natural with a big dick?"

Chelsea flipped her sister off without taking her mouth off his cock. The longer she worked at David's dick, the more sensual and involved her actions became. She lapped at the precum which flowed steadily from the tip, massaged his balls gently, and licked up and down the shaft hungrily, slurping up her own saliva which had accumulated along his length. She locked eyes with him, watching for signs of his pleasure, nostrils flaring as the scent of his huge cock flooded her mind. She seemed proud as he audibly approached his climax.

Suddenly his dick jerked, and a spurt of cum shot out. "Oh, fuck!" Chelsea cried, remembering too late the point of this blowjob. Spurts of hot, dripping cum landed over her face and chest, soaking her shirt through. "Goddamnit you idiot, you were meant to cum in her!" Chelsea cried.

"It's not my fault you're so good at sucking my dick," David replied. "Hey, I've got an idea. All you need to do is help me get hard again, and I can cum inside your sister."

"How long will that take?" Chelsea asked.

"Not long at all, if you follow my instructions. Here, let me help you with that," David said, and pulled her cum-soaked shirt off her head.

"Hey!" Chelsea cried, clutching her arms over her heaving, bra-clad chest. "What the hell, man?"

"Your titties will be perfect for getting me hard again. Come on, lower your arms for me, princess."

Elsie came up behind Chelsea and guided her arms down. Chelsea's faced scrunched up with concern, but she seemingly couldn't muster the energy to fight back against this turn of events. Her breasts were revealed in all their angelic glory, incredible even concealed by her bra.

"God, your boobs sure are something else," Elsie said. "I can't believe we're related, honestly."

David started jerking his huge cock, and I watched the huge, flaccid shape slowly lengthen and inflate. His eyes were locked on her chest, feasting with his eyes upon the fruits of my girlfriend's nubile body. Chelsea watched his dick with fascination, seemingly unable to believe how it was able to keep growing, even after it had far surpassed the size of any average man's tool. Their eyes met momentarily, and she looked away, blushing.

"I think I know how to speed this up," David said, and pushed his dick up in between Chelsea's ample breasts. She gasped at the audacity, and he started thrusting up between her imprisoned titties, tip bumping up against her chin with each thrust. "God, these things are silky smooth..."

"I would never be able to do this," Elsie said, practically drooling over Chelsea's shoulder. "I'm actually jealous. You're so lucky."

"No... I hate this..." Chelsea said. She didn't sound like she was convincing even herself this time.

"Oh, you do?" David asked. "I'm sorry, this was rude. I should have asked before assuming which part of your body I could use for my pleasure. Maybe I should try somewhere else?"

"Somewhere else?" Chelsea asked, totally spaced out, looking down at his dick thrusting between her boobs.

"Yeah. I know just the place."

The video cut off. I didn't pause for a second before opening the next one.

Several minutes had obviously passed. Chelsea was mostly undressed at this point, only wearing her bra. She sat on top of David, sliding back and forth, running her pussy over his throbbing cock which was pressed flat on his stomach. Elsie sat to the side, eyes sparkling, looking more pleased with herself than she ever had.

"You sure I can't convince you to put this thing inside?" David asked. "I'm sure this whole process would go a lot faster if you did..."

"No... never... I'm not gonna cheat on my boyfriend, not for anything..."

"Honey, you think you haven't cheated on him already? What have we been doing for the last half hour?"

Chelsea shook her head. "As long as it doesn't go inside, I haven't cheated... that's the line..." David laughed, but didn't argue.

"You know, sis, just seeing a picture of David's dick was enough to convince me to cheat on Noah," Elsie said. "But it wasn't until I felt David's cock inside of me that I realised I was never going back."

"You and I are different..." Chelsea moaned, gyrating back and forth on David's cock. It was mere inches from slipping inside of her. "I have moral standards..."

"Oh yeah?" Elsie leaned close. "Prove it. Put it in, just once."

Chelsea grimaced. She hesitated a second too long, gazing down at the dick beneath her. "...no," she said. "I can't."

"Then how do we know you're not a hypocrite?" Elsie asked.

Chelsea glared at her. "You're trying to manipulate me..."

Chelsea reached the end of one gyration, putting the tip of David's dick dangerously close to her pussy. Suddenly, David shifted his weight, and his dick slipped inside Chelsea's dripping hole, almost looking like an accident. He smirked.

"...Oops," he said.

Chelsea stiffened. "You asshole!" she cried. She stared down at her entrance, seeing it stretch open around the tip of his cock. "Take it out!"

Slowly but surely, David pushed his cock deeper into Chelsea's pussy. She groaned as he stretched her open, irresistibly invading her innermost sanctum. He ground to a halt, balls pressing up against plump ass.

"So, how is it? Best thing you've ever felt, right?" Elsie said, smirking.

"No..." Chelsea replied, breathing labored as she struggled to accommodate the enormous monster inside her.

"Good enough to leave your boyfriend for, huh?"

"No!" Chelsea cried. "Of course not!"

"Oh?" David said. "So you won't change your mind if I thrust again, then?"

"Bring it on, you arrogant asshole!" Chelsea yelled.

David pulled out and thrusted again, and Chelsea grunted deeply. "Oh god..." she moaned.

"That almost sounded like pleasure," Elsie taunted. "Hey sis, maybe it's time to just surrender?"

"Eat shit!" Chelsea cried. David thrusted again, and she screamed. "Oh fuuuuuuck!" she wailed, clutching at her breasts, playing with them instinctively.

"How about now?" Elsie asked, slapping Chelsea's titty.

"It's... it's not even that good..." Chelsea whimpered. "Please..."

"Please keep going?" David asked. "No worries." His slow pace of individual thrusts increased, pistoning in and out over and over again.

"Nooooooooo..." Chelsea cried, as to my aroused, confused horror, her moans of anguish transformed into something far more monstrous. "Nooooooo... ohhhhhhhhh... oh fuuuuuuck!" she wailed, screaming her burgeoning pleasure out into Elsie's apartment. "Whyyyyyyy..." she sobbed. "Why is it so goooooooood?" Her cries broke off into gasps of overwhelming, hypnotising, deeply gratifying pleasure.

"I don't know why you ever settled for that dweeb," Elsie said. "Isn't this better? Your twenties are for experiencing life, not tying yourself down with some tiny-dicked loser. It's embarrassing that I'm the little sister, yet I'm the one who has to teach you about sexuality."

"You... you forced me into this..." Chelsea gasped. "I didn't wanna... I didn't want this! I didn't wanna know!"

"Because deep down, you knew you wouldn't go back. You were too comfortable. You were tiptoeing on the edge of the deep end, too scared to leave the kiddie pool." Elsie spread her arms out. "All I needed to do was give you a little push. You can thank me later."

David reached up and deftly unhooked Chelsea's bra, letting her beautiful breasts spill out from their lacy prison. He groped them mercilessly, making Chelsea writhe and moan on top of him, revelling in the rough handling. Suddenly, he flipped her onto her back, crouching above to drive his magnum cock unforgivably deep into her drenched, grasping cunt. Chelsea's eyes rolled into the back of her head, and her titties bounced on her chest in time with his thrusts.

Elsie moved to David's side, feeling up his abs, his sweaty, hairy chest, as he thrusted into her sister. "God, you hot fucking stud. Fuck my big bitch sister, just like that. Blow her pretty brains out. Turn her into your big cock slave, like the slut she is."

Without a word, David grabbed Elsie by the back of her hair, and shoved her down to lick her sister's dripping cunt. Elsie squealed, giddily complying with his dominant request. The sounds of her feverish slurping joined the chorus of sexual debauchery. David reached down to roughly finger Elsie's pussy from behind, and she gargled a sweet moan into her sister's wet snatch through the frothy mixture of pussy fluid and precum that filled her mouth.

"In ten seconds, you're going to cum on my cock, Chelsea," David announced. "It won't be the last time, but you can never experience your first again. I want you to enjoy this moment. I'm going to count down for you. Ten."

Chelsea gasped, unable to reply cogently. "I- oh! David! Fuck! You are... ohhhh!"

"Nine."

"So deep! So fucking deep!" she cried, eyes rolling back in her head.

"Eight."

The sound of David's balls slapping into Chelsea's rear echoed around the room. It was accompanied by a harmony of squelches as her pussy overflowed with welcoming juices, beckoning her orgasm.

"Seven."

Elsie pulled her head up from Chelsea's pussy, her face drenched in slime. Her hair was a sticky, matted mess. "Oh fuck!" she said. "Fuck my sister raw David! Make her cum on your dick!"

"Six."

Elsie grabbed Chelsea's face by the jaw. "Admit it. Admit you love his massive dick. Thank me for it."

"Five."

"Fine!" Chelsea wailed. "I love it! I love his big dick so fucking much! Oh god, he looks so fucking hot thrusting into me!"

"Four."

"Shit," Elsie said, grinning. "I didn't even ask you to mention his looks. You must really like him."

David grunted, pounding Chelsea's pussy into utter oblivion, reducing my poor girlfriend into a quivering mess. "Three!"

"David!" she screamed.

"Two!"

"Daaaaaavid! Fuck me, you sexy fucking bastard!" she screamed.

"ONE!" David screamed. Chelsea buckled, legs wrapping around him, pulling him close and-