Forbidden Summer Night

The city lights blurred as we sat across from each other at the rooftop restaurant, the summer heat clinging to my skin like a second shirt. My sister, Elena, looked radiant despite everything—35, one month pregnant with her second child, her light brown hair catching the glow of the string lights above us. Her green eyes sparkled with that mix of exhaustion and relief; her husband was home with their toddler, giving her this rare night off. "God, I needed this," she said, raising her glass of sparkling water. "No diapers, no tantrums, just us catching up like old times." I smiled, ordering another beer, the fifth one already. The conversation flowed easily at first—work, her swollen 34D breasts that she joked were "saggy and leaking already," the way pregnancy made everything feel heavier. But as the drinks kept coming, my head spun, and the way she leaned forward, her cleavage pressing against the low neckline of her dress, stirred something forbidden I’d buried for years.

We left the restaurant around midnight, the streets still buzzing with Friday night energy. "Let’s grab some beers and hit the park," she suggested, her hand brushing mine accidentally. We found a bench near the fountain, close enough that our thighs touched. The park was crowded—couples strolling, groups laughing—but we sat pressed together, sharing cans from the corner store. Her scent, a mix of perfume and something warmer, filled my senses. "You’ve grown up so much," she murmured, her voice low. "But you’re still my little brother." The word hung there, heavy with tension. I felt it too, that electric forbidden spark, and from the way her breath hitched, so did she.

The beers loosened us further. "Remember when we used to sneak out as kids?" I asked, my hand resting on her knee. She laughed, but it turned husky. "Yeah, and now here we are, both adults with secrets." Her fingers traced my arm, lingering. The crowd around us made it thrilling—anyone could see, maybe even someone we knew. She shifted closer, her pregnant belly brushing my side. "This feels wrong," she whispered, yet her eyes darkened with want. I leaned in first, a small sensual kiss on her lips, careful and testing. She responded, her hand cupping my cheek, and the tension snapped like a wire.

Passion built fast. My hand slid up her thigh under the table-like bench edge, feeling the heat through her dress. "We can’t," she panted, but her tongue met mine again, deeper. People walked by, oblivious or maybe not, and the risk made my cock harden instantly. She was wet—I could sense it in her squirming—and the moral line we were crossing only fueled us. "Your tits look so full," I said, voice rough. "Swollen from the baby." She moaned softly, guiding my hand to cup one, the fabric damp from early lactation. We kissed harder, hands roaming, but stayed just short of bold, knowing eyes were everywhere.

"We need to go somewhere," she gasped, pulling back with a wicked grin. We hurried to a small hotel in the city center, her booking the room casually. "For me and my brother," she told the clerk, the lie tasting sweet on her tongue. Once inside, the door clicked shut, and inhibitions vanished. She stripped slowly to her underwear: a simple black lace bra, stretched tight over her 34D breasts, the cups damp with milk spots, straps digging into her shoulders. Her panties were matching, high-cut, clinging wetly to her pussy, the fabric outlining every curve, a small wet patch already forming from how horny she was. I touched her for long minutes, feeling the lace rasp against her swollen nipples, the way the bra strained, her ass firm yet soft under my palms.

Naked now, we fell onto the bed like maniacs, ten years of pent-up desire exploding. I entered her dripping pussy in one thrust, her walls gripping my hard cock. "Fuck, little brother," she screamed, loud enough for open windows to carry it out. We tried every position—her on top, riding with her pregnant belly bouncing, me behind gripping her ass, missionary with her legs wrapped tight. Sweat slicked our bodies, her lactating breasts dripping onto my chest as I sucked them. She came hard, moaning my name, the forbidden thrill making every thrust deeper.

After, panting and spent, she checked her phone—missed calls from her husband and mom. She called mom first, my mouth still on her tits, sucking gently. Then her husband, while I slid back inside her wet pussy. She tried to hold it, but a big moan escaped. "Just... tired," she lied, voice shaking. The line clicked off, and she grinned at me. "This is only the beginning."