Full Moon Sin: Erotic Werewolf Mating

Chapter 2

ALPHA FORBIDDEN SISTER INLAW 2

Melvin’s body was still fluttering around Kelvin’s knot, her walls rhythmically milking every last drop of his c*m deep inside her womb.

The alpha’s heavy weight pinned her deliciously into the soft moss of the glade, his thick c**k locked tight behind her bone. The full moon hung fat above them, witnessing their joined bodies in its cool light while the distant howls of the pack echoed like a sinful chorus.

She tried to catch her breath, guilt already clawing at her chest. “Kelvin… we have to—”

A sharp knock sounded against the thick wooden door of the small healer’s cabin nestled at the edge of the glade. The structure was meant for private healings, its walls charmed to muffle sound and scent, but the knock still cut through.

They both froze.

“s**t,” Kelvin growled under his breath. His knot was still swollen and pulsing inside her, refusing to deflate. Melvin’s eyes widened in panic. She shoved at his broad shoulders, but he only grunted and ground his hips forward, forcing another helpless whimper from her throat as fresh slick gushed around his girth.

“Quick,” she hissed, heart hammering. They sprang apart as much as the knot would allow—Kelvin rolling them so he was sitting against the sturdy wooden wall beside the door, Melvin straddling his lap with her back to his chest. His massive arms banded around her waist, keeping her impaled and full. The position hid nothing from the waist up, but at least the door remained closed.

Another knock, firmer this time.

“Who is it?” Kelvin called out, his voice rough but steady, carrying the natural authority of the pack’s strongest alpha. One of his hands slid down Melvin’s sweat-slicked stomach, fingers splaying possessively over her lower belly where his c*m was sealed inside her.

From the other side of the door came a sweet, familiar voice that made Melvin’s stomach twist with shame and forbidden heat. “It’s Lila. I heard there was a bad fight earlier and Kelvin was hurt. I brought fresh herbs and some of Mother’s salve. Can I come in?”

Melvin’s breath hitched. Her sister. Kelvin’s fiancée. The scent of her own heat and Kelvin’s rut-thick musk still hung heavy in the cabin air. If Lila opened the door…

Kelvin’s lips brushed the shell of Melvin’s ear, his voice a low, wicked rumble only she could hear. “Answer her, healer. Tell her I’m being tended to.”

His free hand dipped lower, calloused fingers sliding through the mess of her soaked folds stretched obscenely around the base of his knot. Melvin bit her lip hard to stifle a moan as two thick fingers pressed alongside his knotted c**k, stretching her even more.

“I—I’m already treating him, Lila,” Melvin managed, her voice breathy and strained. She gripped Kelvin’s forearm, nails digging in as his fingers began a slow, filthy rhythm, curling and stroking the sensitive walls just above where his knot locked them together.

“He’s… stable. You don’t need to—”

Kelvin chuckled darkly against her neck, teeth grazing the same spot he’d nearly bitten earlier. His fingers pumped deeper, gathering the creamy mix of their combined fluids and smearing it up to her swollen c**t. He circled the aching bud with merciless precision, making Melvin’s thighs tremble around his hips.

“Are you sure?” Lila’s voice was laced with concern, closer now, as if she’d pressed her ear to the door. “I can smell blood… and something else. Are you both alright in there? The moon is strong tonight.”

Melvin’s head fell back against Kelvin’s shoulder as he thrust his fingers harder, the wet squelching sounds barely masked by her ragged breathing. His knot tugged deliciously inside her with every tiny shift of his hips, keeping her on the razor’s edge of another orgasm. Her breasts heaved in the cool air, n*****s tight and aching.

“She’s right outside,” Melvin whispered desperately, even as her hips rolled greedily against his hand. “Kelvin, stop—”

But he didn’t stop. Instead, he nipped the side of her throat and growled low, “You’re clenching so f*****g hard around me, little healer. Your sister’s voice makes this forbidden p***y even wetter, doesn’t it?” His fingers sped up, three now, stretching her mercilessly while his thumb tormented her c**t. “Imagine if she opened the door right now. Saw her big sister stuffed full of her fiancé’s knot, dripping like a b***h in heat.”

Melvin whimpered, the filthy words sending a fresh gush of slick around his c**k. She could feel another climax building fast, her healer magic sparking involuntarily along her skin, feeding pleasure back into Kelvin’s body.

“I’m fine, Lila,” Kelvin answered smoothly through the door, his tone almost normal except for the gravelly edge of rut. “Melvin’s magic is… very effective.” He emphasized the words by grinding his knot deeper and pinching her c**t between thumb and forefinger.

A broken moan escaped Melvin before she could choke it back. She slapped a hand over her own mouth, body shaking as pleasure ripped through her. Her p***y spasmed violently around his knot and invading fingers, fresh waves of her release soaking his hand and thighs.

Lila paused on the other side. “Melvin? That sounded like you were in pain…”

“I’m okay,” Melvin gasped out, voice husky and trembling. “Just… the healing takes a lot out of me tonight. The moon is intense. Go back to the gathering, Lila. I’ll bring Kelvin out when he’s stable.”

Kelvin’s golden eyes glowed with dark satisfaction. He withdrew his fingers slowly, only to bring them up to Melvin’s lips, painting them with their mixed essence. She sucked them clean without thinking, tasting the raw proof of their sin, her tongue swirling obediently around his digits.

“Alright…” Lila sounded hesitant, reluctant. “Tell Kelvin I’m thinking of him. And Melvin… Thank you for taking care of him. You’re always so good to the pack.”

The sound of footsteps retreating finally came. Only then did Kelvin release a low, victorious growl. He spun them again, pressing Melvin face-down into the moss with her ass raised high, his knot firmly locked inside her again.

His massive body covered hers completely as he began shallow, grinding thrusts, working the swollen knot against her most sensitive spots.

“You heard your sister,” he rasped, one hand fisting in her dark hair while the other reached beneath her to rub her c**t again. “You’re so good to the pack. Especially to me. This tight little omega cunt was made for my cock.”

Melvin moaned into the moss, pushing back against him despite the overwhelming fullness. The danger of almost being caught only heightened everything. Her body was on fire, every nerve singing with the alpha’s dominance.

Kelvin’s teeth scraped down her spine, leaving red marks. “Next time she comes knocking, maybe I won’t hold back. Maybe I’ll make you c*m on my knot while you try to lie to her with my c*m still leaking out of you.”

The filthy promise pushed Melvin over the edge again. She cried out, walls fluttering wildly around his knot as another powerful orgasm tore through her. Kelvin snarled in triumph, grinding deep as his own release surged again, flooding her already full womb with even more hot seed.

They stayed locked like that for long minutes, panting, his heavy body draped over hers protectively and possessively. The moon continued its climb, the night still young and hungry.

Kelvin pressed a surprisingly gentle kiss to the back of her neck, then nipped it sharply. “This is only the beginning, Melvin. The moon isn’t done with us yet… and neither am I.”