Full Moon Sin: Erotic Werewolf Mating

Chapter 3

ALPHA FORBIDDEN SISTER INLAW 3

The knot finally began to soften after what felt like an eternity of pulsing, throbbing fullness. Kelvin stayed buried deep inside Melvin for a very long time, grinding slowly and possessively as the last thick spurts of his c*m filled her already overflowing womb.

Her belly felt swollen with him, heavy and warm, every shift of his hips making obscene wet sounds as excess seed leaked around his softening girth and dripped onto the moss beneath them.

Melvin’s body trembled with aftershocks, her healer magic still faintly glowing where their skin met. Guilt gnawed at her even as pleasure hummed in her veins. “You need to go,” she whispered hoarsely, pushing weakly at his massive chest. “Lila will come looking again. The moon sef its making everything worse.”

Kelvin growled low, nipping her shoulder hard enough to leave a mark before finally pulling out. A rush of their mixed fluids spilled from her stretched p***y, coating her thighs. He watched it with dark satisfaction, golden eyes gleaming. “Clean yourself up, little healer. But don’t think this is over.” He dressed quickly, his powerful frame still radiating rut-heat, and slipped out the back entrance of the cabin into the shadowed trees.

Melvin barely had time to wipe herself down and pull on a fresh shift before frantic footsteps approached the front door. It burst open without a knock.

“Melvin! Help her—please!” Two pack betas carried Lila in, her face pale and twisted in pain. Blood soaked the side of her ceremonial robe, dark crimson against the white fabric. They laid her carefully on the wide healing cot near the window where the moonlight streamed in.

Melvin’s heart lurched. “What happened?”

“Rogue skirmish on the eastern border,” one beta grunted. “She was helping gather moon-herbs when they attacked. The cut is bad—inner thigh. We brought her straight here.”

Lila whimpered as they positioned her, legs parted slightly for access. Melvin’s hands shook as she knelt beside the cot, gently parting the torn fabric. The wound was a deep gash high on Lila’s inner thigh, dangerously close to the crease where leg met groin—barely an inch from her sister’s bare, pink p***y.

The scent of Lila’s blood mixed with the faint sweetness of her own emerging heat, stirred by the full moon. No underwear beneath the robe, typical for pack gatherings. The sight made Melvin’s stomach twist with a confusing rush of concern… and something darker, hotter.

“Leave us,” Melvin ordered the betas, her healer voice steady despite the storm inside. They bowed and retreated, closing the door firmly behind them.

She worked quickly at first, hands glowing with soft golden energy as she cleaned the wound. “Breathe, Lila. I’ve got you.” Her fingers brushed the sensitive skin of her sister’s inner thigh, inches from the soft folds of Lila’s s*x. The gash was clean but deep, requiring focused magic.

Lila hissed in pain, then relaxed slightly under the healing warmth. “It hurts so much… but your hands feel good, sister. I mean it always does.” Her voice was breathy, young and trusting. Her legs fell open a little wider as Melvin leaned closer, the moonlight highlighting every intimate detail, Lila’s smooth, shaved p***y lips glistening faintly with nervous slick, the wound’s edges already knitting under Melvin’s touch.

Melvin swallowed hard. The cabin still smelled of Kelvin and her own recent orgasm. The forbidden memory of his knot locking inside her made her core throb traitorously. As she poured more healing energy in, one hand steady on the wound, her other palm slid higher almost on instinct. Her fingers grazed the soft, warm flesh right beside the injury, rubbing slow circles to ease tension in the muscle.

“You’re so tense,” Melvin murmured, voice low. “Let me help you relax.” The touch was meant to be clinical, but it lingered. Her fingertips brushed closer to Lila’s p***y, feeling the heat radiating from her sister’s core. Lila’s breath hitched.

“M-Melvin… that feels…” Lila’s hips twitched involuntarily. A bead of her slick trailed down toward the wound, mixing with the last traces of blood. Melvin’s healer instincts surged, but so did the moon-driven heat still simmering in her blood. She rubbed more deliberately now, massaging the inner thigh while her thumb traced the outer edge of Lila’s folds—light, soothing strokes that made her sister’s p***y flutter visibly.

“You’re getting wet,” Melvin whispered before she could stop herself. Her face burned with shame, but she didn’t pull away. Instead, she let her fingers glide higher, parting Lila’s slick lips gently as if examining for other injuries. “The moon… it affects all of us tonight.”

Lila moaned softly, eyes half-lidded, cheeks flushed. “Don’t stop. It hurts less when you touch me there. Your magic… it tingles.” Her younger sister’s hips rolled subtly, chasing the contact. Melvin’s own p***y clenched, still leaking Kelvin’s c*m into her fresh shift. The taboo of touching her sister like this—Lila, who was promised to the same alpha who had just bred her—sent a rush of guilty arousal through her.

She pressed two fingers flat against Lila’s c**t, rubbing slow, firm circles while her other hand continued channeling healing energy directly into the closing wound. The gash was nearly sealed now, pink new skin forming, but Melvin didn’t stop the intimate massage. Slick coated her fingers as Lila grew wetter, her soft folds parting easily under the touch.

“You’re so pretty down here,” Melvin breathed, the words slipping out in the heat of the moment. She dipped one finger just inside Lila’s tight entrance, feeling her sister’s walls clench greedily. “So responsive. Does it feel good, little sister?”

Lila nodded frantically, biting her lip. “Yes… Melvin, please… deeper. The pain is going away.” Her full breasts rose and fell rapidly beneath the open robe, n*****s stiff. Melvin leaned in, her breath ghosting over Lila’s thigh as she worked two fingers inside, curling them gently while her thumb kept rubbing the swollen c**t. Wet, rhythmic sounds filled the cabin—obscene and intimate.

Healing magic flowed stronger now, amplified by the rising lust between them. Melvin’s own shift rode up again, her thighs sticky with Kelvin’s seed. She rubbed harder, faster, lost in the forbidden sight of her sister’s p***y gripping her fingers. Lila’s moans grew louder, hips bucking.

“Melvin… I’m going to—” Lila’s voice broke as her body tensed. Her p***y spasmed around Melvin’s fingers, fresh slick gushing out as she came with a sweet, shuddering cry. The wound was fully healed, nothing but a faint scar left.

Melvin slowly withdrew her fingers, staring at the glistening evidence of her sister’s orgasm. Guilt crashed over her, but so did raw hunger. She brought her fingers to her mouth and—

The front door slammed open.

Kelvin stood there, eyes blazing with alpha fury and renewed rut as he took in the scene: Melvin between her sister’s spread thighs, fingers wet with Lila’s release, the air thick with the scent of two omegas in heat and fresh s*x.

“What the f**k is going on here?” His voice was a dangerous growl, c**k already straining against his pants at the sight.