As dawn's first light crept over the horizon, casting a warm glow through the window of their shared quarters, Eren Yeager slowly opened his eyes. For a moment he simply lay there in the aftermath of a dreamless sleep, his mind still foggy and sluggish. But then the events of the previous evening came flooding back to him - Mikasa's teary confession, her desperate need for his touch, the way she had clung to him like he was her only anchor in a stormy sea of emotion...

Eren felt a familiar stirring in his groin as he remembered the feeling of Mikasa's lush body pressed against his own, her soft curves molding perfectly to the hard planes of his muscles. He could still feel the ghost of her touch on his skin, hear the echoes of her breathy moans ringing in his ears. It was almost enough to make him reach for his morning wood and take care of business right then and there...

But no - Eren had other plans for today. A devilish grin spread across his face as he carefully extricated himself from Mikasa's embrace, trying not to wake her just yet. She looked so peaceful sleeping there with her dark hair fanned out over the pillow and her full lips slightly parted in slumber. It would be a shame to disturb such a beautiful sight.

Eren slipped out of bed and padded naked across the room to his dresser, rummaging around until he found what he was looking for - a small vial of clear liquid and an empty syringe. He had been saving these for a special occasion, and he could think of no better reason than this.

He filled the syringe with fluid, his cock throbbing in anticipation as he thought about what he was about to do. Mikasa had made her desires very clear last night - she wanted him inside her, filling her up completely. And Eren aimed to give her exactly what she craved...whether she realized it or not.

Stealthily creeping back to the bed, Eren carefully pulled back the blankets and gazed down at Mikasa's sleeping form with lust-filled eyes. She was still on her stomach as he had left her, one hand tucked beneath her pillow while the other rested on her lower abdomen. Her long black hair fell in a curtain around her face, hiding her expression from view but Eren knew she would look utterly delectable once she woke up.

Taking a deep breath to steady his nerves, Eren gently rolled Mikasa onto her back and lifted the hem of her nightgown. She was bare beneath the thin fabric, her creamy skin smooth and unblemished like polished alabaster. His gaze immediately zeroed in on the juncture between her thighs where a neatly trimmed patch of dark curls concealed her most intimate area from view.

Eren felt his mouth water at the sight, his cock hardening further until it stood out proudly from his body like an angry red beacon. He wanted nothing more than to bury himself inside Mikasa's sweet pussy right then and there, but he forced himself to wait just a little longer.

Using his free hand, Eren carefully parted Mikasa's outer lips to expose the glistening pink folds beneath. She was already slick with arousal even in sleep, her body responding to him instinctively like it always did. He had to suppress a groan of desire at the sight of her puffy labia, swollen and eager for his touch.

Taking aim, Eren slowly inserted the needle into Mikasa's entrance until it disappeared completely inside her tight channel. Then with a quick motion he depressed the plunger, injecting the contents of the syringe deep into her core where it would be quickly absorbed by her hungry tissues.

The drug was a potent fertility enhancer Eren had acquired from an underground lab a few months ago - supposedly designed to increase the chances of conception tenfold when used in conjunction with unprotected sex. He had been saving it for Mikasa, knowing that once she finally gave herself over to him fully there would be no going back. And now...now he could hardly wait to see the results of his handiwork.

As if on cue, Mikasa began to stir beneath Eren's touch - her eyelids fluttering open and a soft moan escaping her lips as she started to wake up. He quickly withdrew the needle and tossed it aside before crawling onto the bed to cover her body with his own, his throbbing cock nestled snugly against her belly.

"Mmm...Eren?" Mikasa mumbled groggily, reaching up to stroke his cheek with a drowsy smile. "What time is it? Did we sleep in?"

"Shh, just relax," Eren murmured, leaning down to capture her lips in a deep kiss that left them both breathless. He could taste the remnants of her dreams on her tongue and it only served to inflame his desire further. "I've got something special planned for you today."

Mikasa's eyes widened as understanding dawned, a pretty blush coloring her cheeks as she gazed up at him with a mix of lust and apprehension. She knew what he wanted from her, could feel the insistent pressure of his erection against her stomach - but something about this morning felt different, almost...inevitable.

"Eren," she whispered hesitantly, biting her lip as her fingers trailed down to brush over the hard length of him. "Are you sure? I mean...we don't have any protection..."

A wicked grin spread across Eren's face and he chuckled lowly before capturing her wandering hand and guiding it to wrap around his aching shaft instead. "Don't worry, baby. I took care of everything while you were sleeping."

Mikasa gasped as she felt the heat and weight of him in her palm, her thumb instinctively swiping over the leaking tip to gather the bead of moisture there. Eren groaned at the contact, his hips bucking into her touch with a needy grind that made her toes curl with anticipation.

"Oh," she breathed, eyes darkening with desire as realization dawned. "You...you really did mean to breed me, didn't you?"

Eren hummed in affirmation, his own eyes glinting with possessive hunger as he gazed down at her. "I want your womb filled with my seed, Mikasa," he growled, his voice rough with lust. "I want everyone to know that this pussy belongs to me and me alone."

Mikasa shuddered at the filthy words, a bolt of pure need shooting through her core straight to her throbbing clit. She knew she should probably protest, maybe even push him away - but her body had other ideas entirely as it arched up into his touch like a flower seeking sunlight.