I'm The Final Boss

The creature's claws struck the stone barely an inch from Yvaine's face.

She stumbled backward, her boots slipping against the damp floor as a deafening shriek tore through the narrow passage. Before the monster could attack again, a streak of lightning struck its head, splitting the skull open and sending blood and fragments of bone across the surrounding rocks.

Yvaine crouched instinctively, throwing an arm over her face. Something warm splattered against her sleeve.

For a moment, she remained perfectly still, listening to the creature's enormous body collapse.

"Yvaine!"

"I'm fine!"

She lowered her arm and stared at the black blood staining her jacket. The material had already begun to smoke where several droplets had landed.

Wonderful. Another piece of clothing ruined. At this rate, she'd have to start walking around naked. Although considering how civilization had collapsed years ago, perhaps public indecency was no longer a criminal offence.

A hand caught her elbow and pulled her upright.

"Stay behind the formation," Ronan ordered, his expression darkening as he examined the shallow cut along her cheek. "I told you not to wander."

"I wasn't wandering. Something pushed me."

Ronan glanced toward the fighting behind them before releasing her. Electricity crackled between his fingers, casting brief flashes of blue light across his face.

"Stay close."

Yvaine nodded obediently.

There was no need to argue with the person currently preventing her from becoming monster food.

The dungeon stretched beneath the ruins of what had once been the city's largest shopping complex. Its corridors were lined with black stone, and pale, fungus-like growths clung to the walls, releasing a faint green glow. The air was damp and unbearably thick with the stench of rotting flesh. into the apocalypse, Yvaine had grown accustomed to many unpleasant things.

The smell of monsters was not one of them.

Ahead, Sera drove both blades through the throat of a hulking, four-armed creature. Its shriek echoed through the chamber as Jory struck from the side, burying his spear beneath its ribs.

The creature fell. Another immediately took its place.

"Six remaining!" Sera shouted.

Bram raised a hand, erecting a translucent barrier between the advancing monsters and the rear formation. Several claws struck the shimmering surface, producing a succession of sharp, metallic sounds.

Yvaine watched from behind Ronan.

Their expedition consisted of twelve people, Ronan, an A-rank Esper. Sera and Bram, both B-rank Espers and eight C-rank Awakened, including Liora, the team's second Guide and herself.

Yvaine was a D-rank Guide. Not particularly impressive. Certainly not impressive enough to be standing inside a dungeon where the creatures could tear her in half.

Nevertheless, she had an important responsibility.

Ronan was powerful, but his abilities placed considerable strain on his mental landscape. Without regular guiding, excessive combat could drive him into overload.

And Yvaine, through some extraordinary stroke of luck, possessed unusually high compatibility with him.

It was the reason she'd been allowed to join the team.

Also the reason she'd spent the past hour feeling as though someone had been repeatedly striking her skull with a hammer.

A sudden wave of pressure swept through her consciousness.

Yvaine stiffened. Ronan's mental energy was destabilizing again.

"Captain." She stepped closer, keeping her voice low. "You're approaching your limit."

"I'm aware."

"Then stop using your ability for a moment."

His gaze remained fixed on the monsters. "There's one more wave approaching."

Yvaine pressed her lips together. Of course there was. Apparently, monsters didn't believe in reasonable working hours. "Let the others handle it. I need to guide you."

Ronan hesitated, then lowered his hand. "Twenty minute."

Yvaine caught his wrist before he could change his mind.

💜~~~~~~

Yvaine pulled him into the nearest alcove, a shallow recess half-hidden by a curtain of glowing fungus. The air was thicker here, heavy with moisture and the metallic tang of monster blood still drying on her sleeve. Ronan's wrist flexed under her fingers, electricity still faintly sparking across his skin.

"Twenty minutes," he repeated, voice low and rough. "We don't have much time."

She didn't waste time answering. Her hands went to the clasps of his combat jacket, yanking them open with practiced urgency. The heavy material fell away, revealing the hard planes of his chest, marked with old scars and the faint blue shimmer of residual power under the skin. Heat rolled off him in waves. His mental energy pressed against her consciousness like a storm front—chaotic, sharp-edged, hungry.

Yvaine shoved her own ruined jacket off. The black blood had already burned small holes through the fabric, she didn't care. Her tank top followed. Cool dungeon air kissed her bare breasts, tightening her nipples almost painfully. Ronan's eyes dropped, darkening.

"You're already leaking," he muttered, gaze locked on the damp spot forming at the crotch of her tactical pants. "That compatibility of yours is fucking dangerous."

"Shut up and let me work."

She dropped to her knees on the damp stone, fingers flying over his belt. The moment she freed his cock, thick and heavy and already half-hard, a low sound tore from his throat. She wrapped her hand around him, stroking once, twice, feeling the heat of him pulse against her palm. Then she took him into her mouth.

Ronan's hand tangled in her hair instantly, not forcing, just holding. The taste of him— and ozone and something darker flooded her tongue. She hollowed her cheeks and sucked hard, taking him deeper until the head of his cock nudged the back of her throat. His mental energy surged in response, crashing against her own. Guiding started the second their bodies connected, she felt the first threads of his overload begin to unravel under the pull of her presence.

"Fuck— Yvaine— " His voice cracked. "Deeper. Take it."

She did. Tears pricked at the corners of her eyes as she forced herself further down, throat working around him. Her free hand slid between her own legs, shoving her pants down just enough to get two fingers inside herself. She was already soaked, walls clenching around nothing. The dual sensation— cock stretching her mouth, fingers fucking her cunt sent sparks up her spine.

Ronan pulled her off. Saliva connected her lips to the flushed head of his cock for a second before breaking. He hauled her up, spun her around, and shoved her against the rough stone wall. Her cheek pressed to the cold rock. She heard the tear of fabric as he yanked her pants the rest of the way down her thighs.

"Legs wider," he ordered.

She spread them. His cock dragged through the slick folds of her pussy, coating himself in her. One hard thrust and he buried himself to the hilt.

Yvaine cried out, the sound echoing off the narrow walls. The stretch was brutal, perfect—thick enough that she felt every ridge, every pulse.

Ronan's hands clamped around her hips, fingers digging bruises into her skin as he started to move. Deep, punishing strokes that slammed her into the wall with every thrust.

"You're so fucking tight," he growled against the back of her neck. "Always so wet for me the second I need you. Is this what you wanted when you dragged me in here? To get fucked like this while the others are still fighting?"

"Yes... and no" The word broke on a moan. "Harder captain. I can take it."

He gave it to her. The wet slap of skin on skin filled the alcove, mixed with her broken gasps and the distant shrieks of monsters still dying outside. Every thrust drove his mental energy deeper into hers, the chaotic storm beginning to settle under the force of the connection. She could feel him— his power, his control, the raw edge of overload smoothing out as her guiding pulled the excess into herself.

Ronan's hand slid up her stomach to cup her breast, pinching her nipple hard enough to make her cunt clench around him. His other hand found her clit, circling with rough, precise pressure.

"Come on my cock," he said, voice dark with command. "I want to feel you first."

Yvaine's orgasm hit like a lightning strike of her own. Her walls locked down around him, pulsing hard, and a broken sob tore from her throat. The pleasure was sharp, almost too much, flooding her senses until her knees nearly gave out. Ronan held her up easily, fucking her through it without slowing.

"Good girl," he murmured, teeth grazing the side of her throat. "Taking it so well. You're soaking me."

He pulled out suddenly. Yvaine made a sound of protest that turned into a startled gasp when he spun her around again, lifted her, and sank back into her in one smooth motion. Her legs locked around his waist. The new angle drove him even deeper. She clung to his shoulders, forehead pressed to his, breath mingling.

Ronan's eyes were pure blue fire. Electricity crackled faintly across his skin where they touched, sending tingling shocks straight to her core. He fucked her against the wall with short, brutal thrusts, each one punching a soft cry from her lips.

"Look at me," he ordered. "I want your eyes on me while I fill you up."

She forced her gaze to stay on his. The mental link between them was wide open now— his power flowing into her, her wrapping around the fraying edges of his control and stitching them back together. It was intimate in a way that went beyond the physical. She felt every surge of his pleasure, every ragged edge of need.

"Ronan... " Her voice was wrecked. "I'm close again..."

"Then come. Milk me. Take everything."

His thumb found her clit again, pressing hard. The second orgasm ripped through her harder than the first. Her cunt spasmed around his cock, pulling him deeper, and Ronan's control shattered. He slammed into her one last time and came with a guttural groan, flooding her with thick, hot pulses. She felt every spurt, the heat of it, the way his mental energy finally settled into something calm and steady under the force of the climax.

For several long seconds they stayed locked together, breathing hard. Sweat slicked their skin. The air around them smelled of sex and ozone and damp stone. Ronan's forehead rested against hers, his cock still buried deep, twitching with aftershocks.

"Status," he said finally, voice rough but clearer than before.

Yvaine swallowed, tasting the salt of her own sweat. "Overloaded channels are stable. You'll hold for the rest of the clear." She flexed around him experimentally and felt him twitch again. "Though you might need a second round later."

A low, dark laugh rumbled in his chest. He didn't pull out yet. Instead he rolled his hips once, slow and deliberate, grinding against her sensitive clit.

"Greedy little Guide," he murmured. "We still have twelve minutes left on the clock."

Outside the alcove, Sera's voice rang out. "—another monster down."

Ronan's eyes never left Yvaine's. "Use them."

Yvaine nearly rolled her eyes even as another involuntary shiver ran through her.

Men.

Especially powerful ones. They possessed the remarkable ability to recognize a problem, acknowledge the problem, and immediately continue causing the problem.

She tried to withdraw her guiding energy before the strain could worsen, carefully pulling the mental threads back into herself. The relief was immediate— but incomplete. Ronan's cock was still buried deep inside her, thick and hot, and every small shift of his hips sent fresh sparks through the link they shared.

Ronan's eyes opened fully. The blue glow had dimmed to a controlled simmer, but the hunger in them had not. "Better?" he asked, voice low.

She nodded, though her hands remained braced on his shoulders. "Your instability has dropped. Don't overdo it again."

"Thank you."

Yvaine gave him a small, breathless smile. "You're welcome."

He didn't return his attention to the battle.

Instead his hands slid down to cup her ass, holding her open as he rolled his hips again—slow, deliberate, grinding the head of his cock against the sensitive spot deep inside her that made her toes curl.

"Twelve minutes," he reminded her, mouth brushing the corner of her lips. "I intend to use every one of them."