My sister found out about my huge cock ... Then she wanted to film porn together. PART 2! Our first sex tape

I woke up feeling refreshed, with drool on the pillow, and swung my feet off the bed. To my surprise, my morning glory had never looked so bright. It had recovered quickly from my sister's blowjob, and I was still tripping over the fact that she had snuck into my bedroom, brought me to heaven, and made me confess things I had kept secured in my heart for so long.

I felt the thrill as I got my shorts on. Through the slatted blinds I could see that Mom was already gone for work. I had no idea what Nadya had planned, but entering her was a forbidden dream of mine, suppressed by the law and by everything I had been raised to believe.

I yawned and descended the stairs, then froze on the last step. Nadya waved from the couch, and Catalina was beside her, looking more excited than usual. Neither of them was known for being an early bird. Both wore tight matching denim shorts and a spandex athletic top with sizable gaps at the sides. Nadya's was purple and Catalina's was blue. It was already noon.

I sank onto the couch and scratched my neck. "How much does she know?" I did not feel comfortable that Nadya had already told one of her friends about the blowjob.

"Everything there is to know about you," she said, twirling her hair on her finger. Her eyes were twinkling, and so were Catalina's.

"Nadya, we can get in trouble if we get caught."

She took Catalina's hand. "She's my best friend. She isn't a snitch, if that's what you're accusing her of."

"I've had some incest dreams too," Catalina admitted. "I won't judge you, and I won't rat you out."

I scratched my neck, unsure whether this was a good start. "Alright."

Catalina fixed her eyes on the center of my shorts. "Your sister jokes around a lot, but do you mind showing it to me?"

I flushed. "What do you mean?"

"Your cock," she said, with the widest grin I had seen on her face.

I looked awkwardly at Nadya, then back at Catalina. My experience with girls was almost nonexistent, and here were two of them waiting for me to pull my cargo shorts down. I rose, fumbled the belt loose, and let the shorts and underwear fall. My cock hardened to concrete as I freed it, and her jaw dropped.

"Holy moly," Catalina said, turning to my sister, who was grinning at me again. "You weren't kidding."

“Told you,” my sister said smugly.

"Come closer," Catalina said.

I kicked the shorts aside. She went down on her knees, and my cock cast a thick shadow over her face. From above I had the best view of her cleavage and her massive thighs. She tried to wrap her fingers around me and was not even close, then tried to pull the foreskin down, but it sat tight on the erection. "Is it always that hard?"

"No. I was already worked up."

She glanced over her shoulder. "You don't think this is a bit overkill?"

I saw gold in my sister's eyes. "That's when you know it's perfect. We've struck gold."

"I guess I'll join," Catalina said, and reluctantly let go. "I've never ridden something so big. He has the cock of a pornstar."

Nadya's smile sharpened. "Mom's at work. The camera is in my bag. We said we'd start, and I'm too horny to wait any longer."

My stomach dropped. Part of me had thought the agreement was still a filthy maybe, something I could wake up from. Catalina was already on her knees in our living room, and my sister was talking about filming me inside her before lunch. "Nadya, this is the house. If she comes back—"

"She won't." Nadya pulled the camera from her bag and pressed it into Catalina's hands. "And if you're going to stand there with that thing out, you might as well put it where it belongs. In your *sister*."

The word landed harder than the camera. Catalina rose, checked the lens, and giggled. "You're really going to let him fuck you. Your twin."

"Exactly," Nadya said. She took my wrist and led me upstairs, Catalina following with the red light already on. In my bedroom she shut the door, peeled the purple top over her head, and pushed the denim shorts down her hips. No panties. The same pink, waxed slit I had only touched through a bikini yesterday waited between her thighs, already shining. "Get on the bed, brother. Catalina, stay on his face when he realizes what he's doing. I want that."

I sat because my legs were not going to hold me. She climbed over my lap, straddled me, and guided the head of my cock along her lips without putting it in. The camera hovered at Catalina's shoulder. I could see the lens, and past it my sister's blue eyes, and past those the closed door that would not save either of us.

My hands found her waist. She was warm, light, and shaking a little, for all her boldness. "Geez, I'm about to fuck my sister on camera."

She just giggled. The head pushed, met resistance, and then slipped inside with a wet sound that Catalina caught from inches away. Nadya's mouth opened. Her walls gripped me so tightly I forgot the lens, forgot Mom, forgot everything except the fact that this was her, the girl who had shared a womb with me, taking the cock she had sucked at three in the morning. She eased down another inch, then another, brows drawn, a broken laugh caught in her throat.

"God, you're big," she said, for the camera and for me. “I can barely fit it. Look at, Catalina."

Catalina's voice came out thin. "I am looking. Holy moly, Nadya, that's halfway and you're already shaking."

"Deeper," Nadya told me. She planted her hands on my chest and forced herself down until I knocked against her limit. We both gasped. She stayed there, stuffed, thighs trembling against my hips, and rolled once so the camera could see where we joined. "That's it. Gosh, that feels good."

The taboo was a hot wire under my skin. I should have pushed her off. Instead I held her hips and thrust up, and the shock on her face turned into a moan she did not bother to hide. She started to ride. Slowly at first, rising until the head nearly slipped out, then sinking until her ass met my thighs. Every drop smeared her pink lips around me. Catalina circled, catching the bounce of Nadya's breasts, the place my cock vanished, my hands spreading her because I could not help it.

"Harder," Nadya said. "Don't be gentle just because I'm a girl. Fuck me like you jerked off thinking about me."

I did. The bed answered. She cried out, grabbed my shoulders, and ground her clit against me each time she landed. The wrongness burned off into something simpler and meaner: she was soaking, tight, and using me, and it felt better than any dream I had been ashamed of. I sat up, mouthed a nipple, and thrust until she was panting against my neck.

"On your back," Catalina said, the camera dipping. "I want her legs open."

Nadya let me roll her. I hooked her knees over my arms and pushed back in, and this time I could see it, the way her slit parted around the shaft, the shine coating me, the little bulge of effort when I bottomed out. She reached between us and rubbed herself, eyes on mine, dirty and fond at once.

"That's your sister's pussy, Mark. Nobody else gets this. Catalina's filming you claiming it. Mom thinks you're the good one, and you're about to cum in me."

"You're going to make me—"

"Not yet." She shoved at my chest. "From behind. I want her to see how deep you go."

I pulled out, slick and aching, and she turned onto her elbows, back arched, ass raised. Catalina crouched by the pillows so the lens ran the length of her body to where I knelt. I spread Nadya with one hand and slid home in a single stroke. She wailed into the mattress. This angle took more of me. I held her hips and fucked her in earnest, the clap of skin filling the room, her strawberry-blonde hair stuck to her neck, her breasts swinging under her each time I buried myself.

"Yes, yes, like that, brother, don't stop, don't you dare stop—"

Catalina laughed, breathless. "He's losing it. Nadya, he's watching himself disappear in you."

"I’m also losing it,” Nadya said, pushing back to meet me. "Cum in me. I want the creampie badly."

The permission snapped the last thread. I folded over her back, one hand under her to rub the pearl I had found on the saddle of her shorts in my head a hundred times, and pounded until her moan broke into a sob of pleasure. She clenched, pulsed, and came around me with her face in the sheets, moaning my name like a secret she wanted recorded. I drove in to the hilt and let go. The first spurt flooded her. The next followed, thick and hot, and I kept jerking through them while she milked me, whimpering, stuffed, taking every drop her brother had.

I stayed inside until the aftershocks faded, then eased out. Catalina moved in at once. A white trickle pushed from Nadya's swollen lips and ran toward the sheets. Nadya reached back, spread herself with two fingers, and looked over her shoulder at the lens.

"Get that," she said, hoarse and pleased. "My brother's cum leaking out of me. First scene. Not bad for a virgin."

Catalina stopped the recording. The room was suddenly only breath and the smell of sex. I sat back on my heels, wrecked, the shame arriving a second after the pleasure and losing. Nadya rolled over, kissed me open-mouthed, and took the camera.

We watched it on the bed, her head on my shoulder, Catalina on the other side still staring at my softening cock as if she did not believe it. The clip was raw and a little shaky. My cock sinking into her. The creampie welling out while she held herself open. Nadya [rewinded ](https://juliusincestus.com/category/incest-stories/)that last shot and smiled against my skin.

I should have felt sick. Mom was at work, the door was unlocked, and I had just filmed myself cumming in my twin while her best friend held the camera. Instead I watched the thrust where Nadya's back arched and felt my cock twitch against my thigh, already interested again. It had not felt like porn while I was inside her. It had felt hotter than that, tighter, wrong in a way that made every stroke land deeper. Hearing her say brother on the playback, seeing my cum leak out of the same slit I had only rubbed through a bikini yesterday, did something the sex itself had not finished. I wanted the clip. I wanted another one. I wanted to know what she looked like from the angle Catalina had caught when I folded over her back.

"We're keeping it," Nadya said.

"Yeah," I said, and I was surprised by how easily it came out. A day ago I had asked for time. Now I was already thinking about the next position, the next load, the next time the red light came on. Catalina's hand was still resting on the camera. I looked at the screen, then at my sister's swollen pussy, and I knew I was not going to talk either of them out of it.

Nadya kissed my shoulder. "Next time Catalina doesn't just hold the camera."

I nodded. I was hooked, and I did not even want the sense to fight it.

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