Chapter 15: The Threshold of Innocence
My senses paralyzed the instant my eyes met Ava's figure in the doorway. She stood there, wrapped in a white towel that seemed to glow against her porcelain skin, still flushed and damp from the steam. I couldn't stop my gaze, now hungry for details, from traveling down her legs; they were long and slender, yet they widened into surprisingly thick, smooth thighs that reflected the room's dim light.
"Ah, much better," she sighed with a naturalness that made my skin crawl. "After all the hustle of the day, I needed to wash the dirt off."
She closed the door behind her with a click that rang in my ears like a gunshot and walked lightly toward the edge of the bed where I was sitting. For a moment, the absurd thought that she was just coming to look for pajamas or a beauty product crossed my mind, but my heart skipped a violent beat when she stopped right in front of me.
Without saying a single word, her fingers went to the knot of the towel on her chest.
With a fluid and brazen movement, the fabric slipped off her body and fell to the floor, piling up at her feet like a useless husk. I stood stunned, my mouth slightly agape and an expression of total disbelief. My mind went blank, unable to process that my little sister was there, completely naked, just inches from my face.
The first thing that assaulted my sight was her chest. It was a pair of breasts surprisingly large and heavy for her build. Upon being released from the towel, they bounced with a hypnotic elasticity before settling. Although they still lacked a bit to reach the massive volume of Lila's, Ava's had a turgid, milky shape that took my breath away. Small drops of water still slid down their upper curves, getting lost in the deep valley that formed between them. My eyes locked on her nipples: they were large, swollen from the change in temperature, and looked a bright pink color, standing out vulgarly against the whiteness of her skin.
*Stop looking, Ethan... she's your sister,* I scolded myself internally, but my sight betrayed me immediately, descending toward the rest of her anatomy.
Her hips were wide, creating a perfect hourglass silhouette that finally explained why it felt so good when she had sat on my lap during dinner. A plump, firm rear end protruded from behind, rounding out her figure in a sinful way.
But it was what I saw between her thighs that left me paralyzed. Unlike Lila, the area of her crotch was completely smooth and hairless, flawless, fair skin that reminded me of a doll's. Just below, between the creamy flesh of her thick thighs, a perfect, pink slit was glimpsed. I swallowed hard as I contemplated that forbidden place, feeling the air in the room grow thick.
*How beautiful my little sister's pussy is...* I thought, and the weight of that idea made me feel a mixture of guilt and desire that almost made me dizzy. I couldn't believe that the girl I remembered had become a woman with such a developed and lascivious body.
"What... what are you doing, Ava?" I managed to articulate, forcing my gaze back up to her face to avoid getting lost in the temptation.
She tilted her head, showing an expression of genuine confusion. Her blue eyes looked at me with a cleanliness that made me feel like a pervert.
"Is something wrong, Ethan?" she asked, as if she had no idea of the impact she was causing on my body.
"Why aren't you putting on clothes? We're going to sleep," I said, trying not to let my voice tremble, even though my lower half was already starting to react traitorously under the sheets.
She looked down at her own naked body for a moment, and I, inevitably, followed her gaze, traveling again over her swaying breasts and flat stomach. Then, she let out a small sound of surprise and her cheeks flushed with a charming blush that only accentuated her beauty.
"Ah... it's just that I usually sleep like this," she blurted out with a naturalness that left me stunned. "Since it started getting so hot at night, I got used to not wearing anything. Does it bother you if I sleep like this?"
I was speechless. She looked at me waiting for an answer, with that habitual innocence that made my dark thoughts seem like a betrayal of our blood. In my mind, I knew it was a huge problem. Having that naked, perfect body by my side all night was an invitation to disaster, a constant assault on my senses for which no training had prepared me.
But I couldn't admit it. Telling her it bothered me would be to acknowledge that her body excited me, that it made me feel uncomfortable because I couldn't stop desiring her. I felt miserably guilty seeing that she was only acting naturally, trusting her older brother completely.
"No... no problem," I lied, feeling sweat start to form on the back of my neck. "If you rest better that way, it's fine."
Ava lit up her face with a smile of pure happiness, an expression that contrasted violently with the lasciviousness of her naked body.
"Great! I knew you'd understand. I love being like this with you, like before."
She stepped one step closer to the bed, and I felt my pulse accelerate to the point of hearing my own heartbeat in my ears. As she walked, her heavy breasts moved forward with a high firmness, bouncing softly with every step she took toward me. The sight of all that white, turgid flesh approaching was the last thing my nerves could endure before she started climbing into the bed, invading my personal space with her intoxicating scent of soap and clean skin.
End of Chapter 15