Me, my younger sister and Johny

You might find this strange, but this is my true story. My name is Nicol, and Sarah is my younger sister. Well, half-sister, but we’ve lived together since we were little, so we’re like real sisters. We’ve shared a home ever since my biological mother died in a car accident. I was five at the time and don’t remember much—actually, nothing at all.

Six months later, Sarah and her mom, Andrea, moved in with us, and they’ve lived with us ever since. We live in Chicago in a family house with a big garden. There’s a pool and a small cottage with a sauna. As you might have guessed, we’re not exactly poor.

Sarah is a beautiful black-haired girl with a slim figure and larger breasts. She’s nineteen and a bit of a wild one. I’m twenty-one, a pretty brunette, I think. I also have decently sized breasts, though not as big as hers.

It all started one summer when I was seventeen. Our parents were away for the weekend at our aunt’s, so we had the house to ourselves. The weather was beautiful—I was swimming in the pool and enjoying the sun. Sometimes I sunbathed, sometimes I swam.

Since no one could see into our garden, I sunbathed naked, of course. I’m not shy, and I like showing off. Just pure relaxation. Sarah was somewhere in the house, so I wondered what she was up to. I went to look for her.

One of her favorite pastimes was browsing porn pictures online. I had a hunch where she might be, so I headed straight to her room. Sure enough, she was at the computer again. I went to see what she was looking at. I couldn’t believe my eyes.

She had open pages showing girls in the hardcore positions—with animals, no less. I knew such things existed, but I’d never imagined them. I stared in shock.

“God, is this even possible?” I asked, excited.

“Yeah, it is, and it’s fucking hot. Put something on and stop shoving your tits in my face,” Sarah smirked.

“It’s so dirty and degrading.”

Watching those girls being taken by dogs, horses, and bulls made me tremble with arousal. After a few hours of downloading, we had plenty of pictures and several short clips. We watched countless beautiful girls going at it with various animals—mostly dogs and horses, but some with donkeys too. One young blonde was getting railed hard by a zebra.

“Damn, that’s something else. I’d love to see a girl getting licked and fucked by an animal in real life,” I told Sarah.

“Isn’t that what you’re seeing here?” she replied.

“Yeah, but I mean live, in person. Get it?”

“What if I tried it?” she asked, half-serious, half-joking.

“It would turn me on like crazy. I think I could totally do it with a dog, but I’d need more details about how a girl goes wild with one.”

“Why not? It’s easy,” I said, navigating to a chat site.

We wanted to talk to someone about it. I created a room titled “Sister and Dog!” It didn’t take long before a young woman joined. We chatted with her for a long time. Every word and story she told turned us on immensely. She said she’d been doing it with her dog for over two years and loved it. She even told us she blew him and sometimes let him fuck her ass. We were both mesmerized, hanging on her every word. We said goodbye, promising to write about any future escapades.

“I want to try it too—I really, really do. Will you help me, sis?” Sarah asked.

“I seriously want this!” she begged. I smiled.

“Come on, then. Let’s go get your lover.” I didn’t even realize I was still naked as I led Sarah by the hand to the living room, where our St. Bernard, Johny, was lounging.

He showed no interest in us, just dozing peacefully. He’s a big softie, and we’d always seen him as just a pet—until today. “Shouldn’t we wash him first? He stinks!” Sarah suggested, already dragging him to the bathroom. Johny didn’t understand at first but eventually gave in, though reluctantly. He resisted briefly but then resigned himself to the bath.

“So, are you really ready for this?” I asked.

Sarah was already wet and curious from our earlier conversation—she could only say yes! We pushed him into the tub. Sarah stripped and climbed in with him. We soaped him up thoroughly, making sure he smelled nice and clean. I was particularly fascinated by his penis. I ran my hand between his thighs and stroked his furry sheath.

At first slowly, but as it grew unexpectedly large in my palm, I sped up. I felt his cock hardening under the foreskin, the bulb at the base swelling. I gripped him firmly, stroking as he thrust into my hand. The tip emerged, hardening and turning purple before my eyes.

His shaft grew longer and thicker—over twenty centimeters. It was impressively long and thick, and my surprise quickly turned to arousal. A thin fluid leaked out, and I licked it—salty, but not bad. Sarah stared in disbelief, fondling her breasts (which had been bigger than mine since she was fifteen). Something came over me—I went wild, taking his red cock into my mouth, sliding it in slowly, alternating between licking and sucking. I could barely take half of him.

Suddenly, Sarah grabbed my hair, forcing my head down until his cock hit my tonsils, tears springing to my eyes.

“Now suck it properly, you bitch!” she yelled, moving my head on his lap.

I gripped him tightly with my lips, swirling my tongue. Johny filled my mouth with spurts of his cum, and I tried to swallow it all, though some dripped down my chin. Sarah released me, stroking my back and ass, then pinched my nipple hard—I screamed, his cock slipping from my mouth.

“No, not with you, Sarah, please,” I protested, but she wasn’t deterred.

“Shut up and suck, slut.”

She licked my hardened nipple. I gave in, deciding to enjoy everything she offered, sister or not. I took his twitching cock back into my mouth, sucking fiercely. Sarah stopped teasing my breasts and dove for my lower holes, spreading them, thrusting in fingers, licking until her face was wet. She fucked me with three fingers deep in my pussy while her other hand’s index finger teased my tight ass.

“Lick your fingers and put them in my ass too!” I obeyed, crying out in painful pleasure as Johny’s cock slipped from my saliva-and-cum-filled mouth. I screamed, riding my sister’s fingers.

“Harder—I’m close!” I hissed, shaking violently as orgasm hit.

When I recovered, I stood and kissed Sarah, transferring Johny’s remnants between our tongues. We kissed deeply, savoring the taste.

“Thank you, sis. That was amazing.”

“Do you really want to try it, sis?” I asked Sarah.

“After that, I’d fuck a horse!” she laughed.

“Come on, let’s go to the bedroom.” My pussy was dripping before we even got there—I couldn’t wait to see Johny fuck her. I asked one last time if she was ready. She nodded.

I patted the bed; Johny jumped up, and we sat beside him. I rolled him onto his back, his big red cock on full display. I worried he’d had enough, but he was still hard. Sarah knelt, elbows propped, and took him into her mouth, bobbing. His cock was long, thick, and stiff as a spear, but she kept massaging it, licking its length while fondling his balls.

She deep-throated him slowly. I sat behind her, spanking her ass, then licked my fingers and rubbed her clit. She pulled his cock out, stroking it gently. I slid a finger into her pussy, and she thrust against it.

“Don’t stop sucking, you little bitch. He’s close.” She obeyed as I fingered her wetness.

I spat between her cheeks, rubbing saliva into her ass—I knew she loved that. Johny panted, pumping cum into Sarah’s mouth. She pulled him out, letting it spray her face, screaming for me to go faster—she was close. She arched in a massive orgasm. Johny hopped off the bed, watching us.

“Clean him up, you slut—you can’t leave your master dirty!” I yanked her head between his thighs. She took his softening cock, sucking off the last drops. To our surprise, he was still hard.

“No, try this—sit on the edge.” She obeyed, legs spread wide. I guided Johny between them, holding his snout to her soaked thighs. She was twice as wet as usual—he knew exactly what to do. His tongue flicked her clit, and she trembled, nearly coming instantly. When he licked deeper, she screamed in pleasure. His tongue explored her pussy and ass—unbelievable depth. Then Johny took charge.

He stood on hind legs, front paws beside her, his thick cock seeking entry. Sarah lifted her legs, impaling herself on him. He fucked her wildly—she matched his thrusts, even hugging him, ass slamming back. She screamed in ecstasy, cum dripping from her pussy as Johny kept going. After his fifth load, she came hard, collapsing, still wanting more. Her pussy was drenched in her juices and his cum. She knelt, head on the bed, ass high.

“Johny, mount me!” I helped him.

“Fuck your bitch—do it!” His thrusts missed at first, but she guided him in.

“Faster, you mutt!” Her vulgarity turned me on. Her tits bounced against the bed. I sat beside her, shoving my pussy in her face.

“Lick, you bitch!” She grabbed my thighs, tongue diving in.

I lay back, legs behind my head.

“Stretch my cunt with your fingers—you’re a fucking slut who takes any dirty mutt!” She shoved them in deep, fucking me mercilessly. Johny panted—she screamed, “He’s cumming!” He thrust hard, pumping into her.

She lay still, savoring his cum flooding her pussy, writhing in her fiercest orgasm yet. After, she pushed him off, fingering herself, then stood over me. I was fingering myself, screaming at the sight of her and Johny.

She pulled her hand free—dog cum and her juices dripped onto my face. I opened my mouth, swallowing it all, rolling the flavor on my tongue. Sarah lay breathless, cum still leaking from her pussy, body trembling.

“So? How was it, sis?” Sarah turned to me, exhausted. “Amazing. No one’s ever fucked me like that. Tomorrow, it’s your turn.” I laughed and nodded.