Morning Heat
Copyright© 2026 by Just Another Smut Writer
Part 3: The Fateful Third Morning
Erotica Sex Story: Part 3: The Fateful Third Morning - The neighbor’s dog is in heat and Ashley knows what it is to want sex and not get it, so she helps Rex.
Caution: This Erotica Sex Story contains strong sexual content, including Ma/Fa Fa/Fa Consensual Lesbian Heterosexual Bestiality Cream Pie Masturbation Oral Sex AI Generated
I woke up the next morning naked as usual, my body already humming with that familiar ache between my thighs. Michael was still in New York, leaving me empty and restless. My hormones were raging, my pussy swollen and slick just from the memory of yesterday. I slipped into my silk robe, the cool fabric brushing over my sensitive nipples and making me shiver. Downstairs I toasted my bagel, poured my coffee, and carried both out to the patio like every other morning.
Rex followed me into the yard, and ran to the edge, nose pressed to the fence, tail stiff. I knew what he was smelling. The neighbor’s bitch was still in heat. His cock was half out of its sheath, pink and glistening, and the sight sent a shameful pulse straight to my clit. I sat down with my breakfast, robe parting over my bare thighs, pretending to eat while I watched him.
He sniffed a few more times, then turned and trotted straight to me. Before I could react his broad head shoved under my robe, cold nose bumping my inner thigh. His tongue dragged hot and wet straight up my slit in one long, hungry lick.
“Rex—fuck,” I gasped, nearly spilling my coffee. My legs fell open on instinct. His tongue pushed between my folds, lapping at my already dripping cunt with those rough, insistent strokes. I set the mug down with shaking hands, heart hammering with guilt and need.
I stood up fast, untying the robe. “I can’t get this messy,” I muttered, laying the silk carefully across the patio table. Naked now, I sank back into the chair and spread my thighs wide. “Come here, baby. Mommy needs you.”
Rex didn’t hesitate. He buried his muzzle between my legs and started licking in earnest—long, sloppy drags from my entrance up over my swollen clit. Wet sounds filled the quiet morning air, obscene and loud. My juices coated his muzzle, dripping down his chin as he lapped greedily.
“Oh god ... yes, just like that,” I moaned, hips rolling up to meet his tongue. “You’re such a good boy. Lick Mommy’s cunt. Fuck, your tongue feels so good.” My fingers gripped the armrests, knuckles white. Every stroke sent sparks shooting through me. My neglected pussy clenched around nothing, dripping more with each pass of his rough tongue.
I reached down and spread my lips wider for him. “Deeper, Rex. Get in there.” He pushed his tongue inside me, scooping out my wetness, then dragged it back up to flick hard over my clit. My thighs started shaking. “I’m such a filthy wife,” I whispered, voice breaking. “Michael would hate me if he knew I let our dog eat my pussy every morning. But I can’t stop. I need it too much.”
The first orgasm hit fast. My back arched, a gush of wetness spilling out as I cried out loud enough for the whole neighborhood to hear. Rex kept licking through it, drinking everything I gave him. I barely caught my breath before the second one built. “Fuck ... again ... don’t stop,” I gasped, grinding down on his tongue. My clit throbbed under every stroke. The second climax crashed over me even stronger, my pussy clenching and squirting a little more as I cried out his name. Rex lapped it all up, his tongue relentless, pushing me straight into a third orgasm that left me trembling and gasping, tears pricking at the corners of my eyes from the intensity.
When it finally ebbed, I slumped back in the chair, legs splayed, pussy glistening and dripping. Rex nosed at me gently, licking my inner thighs clean. My body still buzzed with aftershocks, but the guilt was already settling heavy in my chest. I had just let our dog make me cum three times on the patio while I ate breakfast. And I knew, deep down, that I would do it again tomorrow.
I dropped to my hands and knees right there in the grass beside Rex, the morning sun warm on my bare skin. My robe was already abandoned on the patio table, and my body still buzzed from the three orgasms his tongue had given me. I reached under his belly, fingers wrapping around the hot, slick length of his cock as it slid free of the sheath. It was massive—longer and thicker than anything I had ever seen, veined and glistening, the knot already beginning to swell at the base.
I leaned forward, ready to duck under him and take that fat cock into my mouth, when Rex suddenly jerked away. Before I could react he mounted me, powerful forelegs clamping around my waist. His hips surged forward and half his cock slammed straight into my cunt in one brutal thrust.
“Fuck—Rex!” I gasped, the sudden stretch knocking the air from my lungs. He was thicker than any man I had ever taken, the girth forcing my walls wide open. My pussy clenched around the invasion, dripping wet from his earlier licking, but the pressure was intense. He didn’t wait. He lunged again, driving deeper, then again, each thrust pushing more of that huge cock inside me until he was buried farther than Michael had ever reached.
My arms shook. Pleasure coiled tight and fast in my belly. “Oh god, you’re so deep—fuck, baby, you’re going to make me cum already.” My voice cracked with need and shame. I was on all fours in our backyard, letting our dog fuck me like a bitch in heat, and my body loved every second of it.
Then I felt it—the thick, hard knot battering against my stretched pussy lips. Panic flared. “No, Rex, not the knot—there’s no way—” I tried to crawl forward, but his teeth found the back of my neck. The bite wasn’t hard enough to break skin, but it was firm, dominant. I froze instantly, a submissive whimper escaping me as I spread my legs wider in surrender.
“Good boy ... just ... be careful,” I whispered, voice trembling.
Rex pounded that swollen knot against my entrance over and over, each impact sending sharp, delicious pain through me. My cunt lips stretched and burned, the pressure building until, with one savage thrust, the knot forced its way inside. The sudden fullness ripped a choked cry from my throat. I bit down hard on my lower lip, tasting blood, desperate not to scream loud enough for the neighbors to hear.
He fucked me with the knot locked deep, short, powerful thrusts that rocked my entire body. Every movement dragged that thick bulb against my g-spot and cervix. The orgasm hit without warning. My pussy spasmed around him, squirting around the knot as I came hard, thighs shaking. I barely caught my breath before the second one crashed over me, then the third. My vision blurred. I kept biting my lip, whimpering through clenched teeth while wave after wave of pleasure tore through me.
Rex’s breathing grew ragged. His hips slammed forward one final time, locking us together as he howled. Hot, thick ropes of cum flooded my cunt, pumping deep inside me with every pulse of his knot. The sensation pushed me over again. I twitched and shuddered beneath him, my pussy milking every drop while his cum overflowed around the knot and ran down my thighs in sticky rivulets.
I stayed there on my hands and knees, panting, his knot still swollen inside me, his cum leaking out in messy streams. Guilt and satisfaction warred in my chest. Michael’s wife, bred by our dog in the backyard, knotted and filled until I couldn’t stop cumming. The taste of shame was almost as strong as the taste of pleasure.
Rex panted above me, licking the back of my neck in sloppy affection while we remained tied. I reached one shaky hand between my legs, feeling the stretched lips around his knot, the warm cum still trickling out. My body hummed with aftershocks, already craving more even as the guilt settled heavier.
I knew I would do this again. I already wanted it.
I knelt there on the grass, knees aching, my well-fucked cunt still stretched around Rex’s thick knot. My heart hammered as I stared at that single green eye and the unmistakable shock of red hair peeking through the fence crack. The neighbor had seen everything—seen me on all fours, begging my dog to knot me, seen my body jerk and spasm while his cum pumped deep inside me. I stayed frozen, afraid any movement would confirm what they already knew.
Rex’s knot finally softened enough for him to tug free with a wet, obscene sound. A thick gush of his seed spilled out of me, splattering the grass between my thighs. I scrambled to gather my discarded clothes and hurried inside, bare feet slapping across the patio. Rex trotted after me only as far as the kitchen, where he dropped to the cool tile and began licking his still-swollen cock clean. The sight of his pink tongue lapping at the glistening shaft burned itself into my memory.
I locked the bathroom door behind me and stood under the hot spray, legs trembling. My fingers slid between my thighs and came away coated in a creamy mix of dog cum and my own juices. I brought them to my mouth without thinking, sucking each finger slowly, tasting the salty-slick evidence of what I’d done. The flavor coated my tongue, thick and musky, and a fresh wave of heat rolled through my belly.
My hormones were raging again. Even after being knotted and filled, my clit throbbed with fresh need. I pressed two fingers back inside my swollen pussy, scooping out more of the mess, then licked them clean once more. The shame hit me in the same moment—sharp and hot. I had let my dog breed me in the backyard where anyone could see. And someone had.
I pictured Michael’s face if he ever found out, the way his neglected wife had turned to the family pet for the fucking she craved every single day. I pictured Kaitlyn next door, her petite red-haired body, her untouched virgin cunt, and wondered if it had been her eye at the fence. Or Logan, her delicate younger brother. Either way, the witness knew my secret now.
Guilt and fear twisted together with the lingering satisfaction. My cunt still pulsed around nothing, leaking more of Rex’s load down my thighs to be washed away. I kept scooping and swallowing until the water ran clear, but the taste stayed on my tongue. When I finally stepped out and wrapped a towel around my body, one question kept repeating in my head: what was I going to do about the red-haired neighbor who had seen me get knotted like a bitch in heat?
After lunch the doorbell rang, sharp and sudden. I wiped my hands on a towel and went to answer it, heart already pounding. Kaitlyn stood on the step, petite and red-haired, her green eyes fixed firmly on my feet. She smiled, but it was small and nervous.
“Hi, Ashley. Can I come in?”
“Of course,” I said, stepping aside. “Have a seat.”
She slipped past me into the living room and perched on the edge of the couch, knees pressed together. Rex lifted his head from the kitchen floor, ears perking, but stayed put.
“Would you like something to drink?” I asked, voice too bright.
“No thank you.” She finally glanced up, then away again.
The pleasantries felt ridiculous. I sat across from her, towel still in my lap. “How can I help you?”
Kaitlyn’s cheeks burned. She stared at the carpet. “I want to watch Rex fuck you.”
My stomach dropped. I forced a shocked tone. “Kaitlyn—”
“I saw everything,” she whispered. “Yesterday through the fence. And again this morning when you were on the patio. It was the hottest thing I’ve ever seen.” Her voice trembled but kept going. “I want a better view. Please ... will you do it again for me?”
I hemmed and hawed, letting the silence stretch. Part of me wanted to scream at her to leave, but the rest of me—my traitorous, hormone-soaked body—grew slick at the thought of an audience. Finally I sighed. “Only if you get naked too.”
Her head jerked up. “What?”
“Fair’s fair. If you’re going to watch, you strip as well.”
She swallowed hard, then nodded. “Okay.”
I stood and peeled my clothes off in seconds, letting them drop to the floor. My nipples tightened in the cool air. Kaitlyn watched, mesmerized, then began her own slow undressing. First the blouse, then the bra—small, perky breasts with pale pink nipples. She hesitated at her shorts, fingers shaking, before pushing them down along with her panties. A thick, luxurious red bush appeared, already damp at the curls. She blushed deeper with every inch of skin revealed, until she stood completely bare, arms trying and failing to cover herself.
“Good girl,” I murmured. “Now sit back down.”
She obeyed, thighs pressed tight. I turned to Rex, who had risen and was padding closer, nose twitching at the sudden flood of female scent in the room.
“Come here, boy,” I said, voice low. I dropped to my knees on the rug, ass toward Kaitlyn so she would have a perfect view. My pussy was already dripping, a thin string of arousal stretching between my lips. Rex sniffed, then licked once—long, hot, rough—right up my slit. I moaned, pushing back against his tongue.
“Fuck, that feels good,” I gasped, spreading my knees wider. “He always knows exactly what I need.”
Rex licked again and again, lapping up my juices, his tongue pushing between my folds and flicking over my swollen clit. I reached back and spread my ass cheeks for him, giving Kaitlyn an even clearer sight of my glistening cunt being tongue-fucked by my dog.
“Watch how he drinks me,” I told her, voice husky. “He loves the taste of a wet pussy.”
Kaitlyn’s breathing had gone ragged. Her hand drifted between her own legs, fingers brushing her red bush, then slipping lower to rub her virgin slit. She didn’t speak, just stared, eyes wide and glassy.
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