If the water in a jacuzzi is hot enough, you can't feel anything but the swirl of it around you. Everything else evaporates in the steam you're breathing, and reality tries to slip away.
Her body was hot and fluid as it slid onto his, gradually awakening his senses as he took her in. His eyes opened and fixed on her face; her cheeks flushed, her eyes wide and shining with her smile. He heard her slightly raspy breath and the sharp intake of it as her pelvis settled against his. He smelled her, too, her distinctive perfume rising above the cloying chlorine.
Without thinking, he wrapped his arms around her tightly, feeling her breasts pressed against his chest. Her lips slid wetly over his, her tongue licking gently along his jaw and teasing his ear. He waited to hear what she had to say, waited for the low ripple of her voice as it was when she was aroused, and he was sure that she was now. He hadn't long to wait. Her arms came up around his neck, and she murmured right against his ear, "I dare you."
Though tempted to laugh, the sound stopped in his throat when he felt her grind her hips against the bulge in his bathing suit, which throbbed in response. Bending his head slightly he pressed his mouth to her neck, inhaling the familiar soft scent of her skin and her perfume, the sharp stinging smell of chlorine not able to over-take it. His tongue lashed out against her neck, producing in her a low whimper and a tightening of her grip on him.
His teeth grazed her neck as he asked her, "You dare me to what?"
Her answer was the soft sigh that accompanied her hand as it trailed down his back, nails dragging along his skin. Her fingers slipped beneath the waistband of his shorts and slid round to the front, pushing against her own body as they wrapped firmly around his swollen cock. "I dare you to fuck me," she whispered as she began to stroke him.
His hands moved down to slide beneath her bathing suit bottoms, and his fingers slipped easily between her silky lips. She was so wet that he knew she'd been planning this for a while, and her voice was barely more than a whimper when she felt his fingers pushing into her.
After only a few minutes, she pushed his hand away, releasing her hold on his cock and pressing her lips to his, sucking at his lower lip and his tongue. He kissed her deeply, his hips pushing up instinctively towards her pussy, his arms wrapped tightly around her.