Chapter 2: Knotting in His Sweet Little Step-Sister

**Cathy's POV**

The heavy weight of Logan’s body pinned me to the mattress, his heat radiating through his clothes, burning me up like a furnace, making me feel alive more than I've ever been.

"Good girl," he growled, the vibration rumbling deep in his chest as he buried his face in my neck, drinking in my scent until he trembled. "So sweet, little one. Look at you, all flushed and ready for your Alpha."

"Logan..." I whimpered, my fingers digging into his biceps stretching out the sleeves of his work shirt. My legs wrapped around his hips instinctively, desperate to pull his heavy frame closer. "Please. It hurts so bad inside. Fix it."

"Shh, Daddy's got you, baby sister," his voice dropped to a dark, smoky tone that made my stomach swirl with heat. He lifted his head, his amber eyes locked onto mine, completely devoid of any restraint. "But we have to go slow. An Alpha’s size isn't something a little omega can just take without preparation. I'm going to have to stretch you out first, okay? Make you nice and wide for me."

The erotic mention of his size made my heart hammer. I could feel it pressed against my thigh—even through his jeans, his cock felt massive, a thick, rigid pillar of pure muscle.

Logan shifted, sitting back on his knees as his large, calloused hands can slide down my torso. He didn't rush—like he wanted to savor every second. He stripped away my ruined white lace panties with agonizing slowness, tossing them to the floor. When his gaze fell on my exposed mound, a heavy, predatory grunt broke from his throat. I was embarrassingly soaked, my sweet, sacred place leaking out a fat amount of heat.

"Look how wet you are for me, little one," Logan whispered heavily, his thumbs parting my outer lips. "You've been leaking all over the sheets, haven't you? Such a needy little slut for your big step-brother."

"Mm-hmm," I nodded as I bit my lip, my face burning with a mix of shame and arousal. The dirty words felt like a spark shooting straight into my core. "I wanted you so bad. Touch it, Daddy. Please."

"Fuck baby," Logan cursed under his harsh breath. "Part your legs wider for me. Let me taste how sweet my baby sister is."

Before I could even register his command, Logan slid down the bed and dived between my parted thighs. His mouth clamped down directly over my throbbing clit and he sucked. Hard.

"Logan!" I shrieked, my hands flying to grab his hair, my fingers tangled in the thick strands as his tongue began to swipe heavily along my sensitive flesh. He was ruthless, lapping up the sticky sweetness of my heat with long, wet strokes. Every lap of his hot tongue sent crippling jolts of electricity straight through my veins.

"L-Logan! Ah!" I arched my back, my hips violently bucking against his mouth. The pleasure was too much for someone who had never been touched like this before.

He didn't pull away. Instead, he gripped my thighs with force, pinning my legs wide open as he continued to eat me out, slurping loudly, making a complete mess of my wetness. The thick, erotic sounds filled the room, almost drowning out my moans and his grunts.

While his tongue kept up the torturous rhythm, Logan stuck two thick fingers inside my dripping channel.

"Oh goddess!" I screamed, my eyes flying open.

His fingers were huge, thick like sausages, and they totally stretched the tight walls of my vagina. He began to pump them in and out, hooked slightly to hit the deepest parts of my ache, while his thumb relentlessly worked my clit.

"F-Fuck, you're so tight," Logan grunted against my throbbing mound, stretching his fingers apart inside me to widen the opening—all for him. "Look at how you're gripping Daddy’s fingers. You like being stretched out, don't you? Tell me, Cathy. Tell me you want my big cock inside this tight little hole."

"Yes! Yes, please, I want it!" I cried out, my voice breaking into a needy, high-pitched whine. My wolf was practically howling, completely submissive to his dominant tone. "I want it so bad, Alpha. Please fuck your doll. Fill me up."

Logan pulled his fingers out with a loud, wet squelch, leaving me gaping and twitching on the mattress. He rose to his full height, his breath coming in ragged, beastly pants. His hands flew to his belt, frantically unbuckling it before shoving his trousers and boxers down in one go.

When his cock sprang free, my breath hitched in my throat.

It was terrifying. Because he was an Alpha, his cock was twice the size of anything normal penis—thick, heavily veined, and pulsing with a deep purple color. The tip was already covered with a thick bead of precum, and right at the base was the prominent, deadly bulge of his knot.

He crawled back over me, his bare skin burning hot against mine. He grabbed my hips, positioning the heavy head of his cock right against my dripping entrance.

"I'm going to be gentle, baby," he whispered, his eyes dark with a desperate struggle for control. "Just take it for Daddy. Relax for me."

I nodded, whimpering helplessly. And slowly, he pushed inside my clenching hole.

The sheer girth of him felt like it was splitting me in two. I let out a choked cry, my hands pushing against his massive chest as he buried the first few inches inside me. "Too big... Logan, it's too big!"

"Shh, you're doing so good, little one. Just breathe through your nose," he cooed, kissing away the hot tears streaming down my cheeks while his hips gave a slow, agonizingly deep thrust. "There... you're taking all of it. Such a good, tight little fuck doll."

The initial pain quickly gave way to a sweet, overwhelming pleasure as his hot length frictioned against my swollen walls. The emptiness and ache was gone, replaced by the heavy stretch of his cock. I wrapped my arms around his neck, whimpering into his ear as he began to move in a slow, sweet rhythm, rocking his hips to ease me into the pace.

But a werewolf's heat is an addictive poison.

The scent of my fertility, combined with the tight squeezing of my walls, tore the last of Logan’s sanity to shreds. The patient, sweet step-brother completely vanished. His eyes went fully amber, his fangs growing past his lips as his inner beast took complete control.

"Fuck, I can't... I can't hold back anymore!" he groaned like a beast in pain.

Logan gripped my waist so hard his fingers dug deep into my flesh, and he began to pound into me with savage, beastly force.

Crack!

The sudden sound of a wood splintering echoed through the room as the sheer power of his feral thrusts broke my bedframe. The bottom of the mattress sank to the floor, but Logan didn't care. He didn't even pause. He kept slamming into me, his heavy balls slapping loudly against my buttocks with every merciless thrust.

"Ah! Ah! Alpha!" I screamed, my vision spinning as my body was mercilessly pressed into the mattress. The rough, primal fuck drove me absolutely insane. My pussy spasmed violently, clamping down around his thick cock as a shattering climax tore through me.

Logan let out a deep, deafening guttural roar. He gave one final, earth-shattering thrust, burying himself right in my womb, and then he froze.

Suddenly, the base of his cock began to swell inside me.

"Oh! What is that? Logan, it hurts!" I gasped, my eyes widening in pure panic as the bulbous knot at the base of his shaft expanded to the size of a fist, locking us together. I couldn't move, I was completely trapped, pinned beneath his heavy body while his cock sealed us shut.

Logan groaned, his face buried in my hair as his body quaked tightly. "I'm knotting you, Cathy... Ah, goddess, take it all!"

Before I could ask what that meant, a massive, thick jet of hot, gooey semen erupted deep inside my womb. It kept coming, wave after wave of thick liquid filling me up to the brim, trapped inside by the tight seal of his knot. I had absolutely no idea that this fated, primal lock was doing more than just ending my heat—it was flooding my system, sealing my fate to be pregnant with his alpha pup.

I lay there completely wasted, my breathing ragged, my body locked tight to my step-brother's hips on my ruined, broken bed.

Knock. Knock. Knock.

The hard sound against the wooden door shattered the heavy silence.

"Cathy? Logan?" My mother’s muffled voice called out from the hallway, the doorknob jiggling. "Are you two in there? What was that loud crashing noise?"