My Sister Caught Me Fucking Her Best Friend… And Joined In

"“Caught fucking my sister’s best friend — then she stripped and made it a family affair.”"

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I pulled into the driveway after the longest damn shift of my life, bone-tired and ready to collapse. The second I saw Elise’s little white hatchback parked right in my spot, I couldn’t help but grin. Typical. My sister Amy’s hot 18-year-old best friend had been coming around the house a lot lately, and honestly, I wasn’t complaining one bit.

Elise was something else. She was short, maybe 5’2”, but built like a little pornstar. Those full D-cup tits sat high and perky on her chest, and I’d caught glimpses of her pale pink areolas showing through thin shirts whenever the AC kicked on. Her ass was thick and round, the kind that jiggled just right with every step she took. I even remembered overhearing her tell Amy she kept her pussy completely shaved smooth, and that little fact had been burned into my brain ever since.

I walked inside, tossed my keys on the counter, and there she was — sprawled out on the living room couch in nothing but a tiny red bikini that was fighting a losing battle to contain her. The little triangles were barely covering anything, and the bottoms rode high on her hips, showing off plenty of that juicy ass. Her pale skin looked incredible with the late afternoon sun pouring through the windows.

“Hey, spot thief,” I said with a smirk as I dropped down on the cushion right next to her. Our thighs pressed together. “That’s my parking spot you’re hogging.”

Elise let out a cute little giggle, her cheeks turning pink right away. “Sorry, Jake. Amy said it was okay.” Her voice came out soft and a little breathy.

“Where the hell is my sister anyway?” I asked, leaning back.

Before she could answer, we both heard it — the steady thump-thump-thump from upstairs, followed by loud moans and the unmistakable sound of skin slapping skin. Amy’s boyfriend was over. Again.

Elise cracked up and covered her mouth with her hand. “They’ve been going at it for like twenty minutes already.”

I shook my head and laughed. “Jesus, Amy’s got some nerve. Invites you over and then ditches you to get fucked. Sorry about that. I’ll hang out with you so you don’t have to sit here listening to my sister getting railed.”

Her hazel eyes met mine and that shy smile turned sneaky. “It’s… actually kinda hot listening to them.”

“Oh yeah?” I raised an eyebrow.

“Mmm-hmm,” she said, biting her lip.

I stood up and held out my hand. “Fuck this. Let’s go swim in the backyard. The pool’s private back there and we won’t have to hear the porn soundtrack.”

She grabbed my hand, her fingers warm and soft, and we headed outside. The late afternoon sun was still strong. Elise dove in first and came up gasping, water streaming down her body. That bikini was now clinging to her like it was painted on — her nipples were rock hard, poking right through the thin fabric, and you could clearly see the outline of those pale pink areolas.

We splashed around, joking and messing with each other. Then she popped up right in front of me and one of her tits slipped completely out of the top. That perfect round D-cup bounced there in the sunlight, nipple tight and glistening from the water. She froze when she saw me staring.

“Oops…” she whispered, but she didn’t cover up right away. She let me look for a long second, her breathing getting quicker.

I moved closer, my voice low. “You gonna fix that or what?”

She slowly pulled the fabric back over, but her fingers brushed her own nipple on purpose. “You like what you see?”

“Fuck yes,” I growled. My cock was already getting hard in my trunks.

After that, things moved fast. We got closer in the water, her thighs brushing against mine. She “accidentally” backed her thick ass right up against me and ground against my growing bulge just enough to let me know she felt it. I grabbed her hips and pulled her tight against me.

“Jake…” she breathed, but instead of pulling away she reached back and rubbed my cock through the fabric. “God, you’re so big…”

I spun her around and kissed her hard. She moaned into my mouth while my hands roamed all over her — squeezing that juicy ass, then sliding up to play with her tits. I tugged the top aside so both of them were out and circled my thumbs around those pale pink areolas until she was whimpering against my lips.

We climbed out of the pool, dripping wet, and made it over to the lounge chairs under the patio. She pushed me down and straddled me, grinding her soaked bikini bottoms right against my cock.

“You’ve been wanting this, haven’t you?” I growled, pulling her top completely off so those big tits were free and bouncing.

“Yeah,” she admitted, her voice shaky with lust. “Every time I come over I think about what it would feel like if you fucked me.”

I shoved my trunks down and my cock sprang out. Elise’s eyes went wide and hungry. She slid down, wrapped her hand around it, and started licking and sucking like she was starving for it. She was sloppy in the best way — lots of spit, gagging a little when she took me deep, drool running down onto her tits. Every time those big hazel eyes looked up at me it was almost too much.

I couldn’t wait anymore. I pulled her up, flipped her onto her back, and moved her bikini bottoms to the side. Her pussy was dripping wet, completely smooth and puffy. I rubbed my cock along her slit a couple times before I pushed in slow.

She gasped loud — “Ahh!” — and arched her back as I sank all the way inside her. She was so fucking tight. I started thrusting harder, her tits bouncing with every stroke, the sound of our bodies slapping together mixing with her moans.

“Oh god… yes… fuck me harder…” she begged, her nails digging into my shoulders.

We switched so she was on top, riding me reverse cowgirl. I loved the view — watching that thick ass bounce while she worked herself on my cock and rubbed her clit like crazy.

That’s when I heard the back door open.

Amy was standing there in just tiny sleep shorts and a tank top, her hair all messed up and her face flushed. She looked damn good — thick thighs, nice ass, perky C-cups.

She froze, eyes wide as she watched me balls-deep in her best friend.

Then she smiled. A slow, dirty smile.

“About damn time you two stopped teasing each other,” she said, stepping closer. “I’ve been listening to you guys for the last ten minutes. Sounded hot as hell.”

Elise looked back over her shoulder, still riding me slow, blushing hard but grinning. “Amy… you’re not pissed?”

Amy laughed and pulled her tank top off, letting her tits bounce free. “Pissed? Babe, I’ve wanted to see this for ages.”

She climbed onto the lounge chair and straddled my face, lowering her wet pussy right onto my mouth. She tasted sweet. I licked and sucked her clit while Elise kept bouncing on my dick.

The two of them started making out above me, moaning into each other’s mouths. Amy reached down and played with Elise’s nipples, pinching them until Elise started shaking.

“I’m gonna cum…” Elise whimpered. Her pussy clamped down hard around me and she came so hard she soaked my cock.

I couldn’t hold back. I groaned into Amy’s pussy and pumped my load deep inside Elise. Amy ground down on my face and came too, her thighs shaking around my head.

We all collapsed together in a sweaty, sticky mess — Elise leaking my cum, Amy cuddled up with us, lazily playing with my softening cock.

“Next time,” Amy said with a wicked little grin, “we do this in my room and you two are staying the night.”

Elise giggled, still catching her breath. “I’m down.”

Published 4 hours ago

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