The air crackled with a tension I couldn't deny. My step-sister, with her blonde hair and natural tits, sat across from me. We were supposed to be studying, but the way her hot panties clung to her, the way she kept fidgeting... it was a distraction I welcomed. She was wearing a tight shirt that revealed the shape of her D cup and I could see her nipples poking through. I pretended to ignore it, but she knew I was looking.
"You can rub my ass," she whispered, her voice barely audible above the music, "but don't penetrate... okay?" Her eyes, usually bright and mischievous, were now clouded with a mixture of fear and excitement. I nodded slowly, my heart pounding. The unspoken agreement hung heavy between us. The role play had begun.
I reached out, my fingers tracing the outline of her jeans before gently slipping beneath the fabric. Her skin was warm, soft. I started to massage her pussy, moving slowly and sensually. I could feel the anticipation building in her. She bit her lip, trying to suppress a moan. I could see her breath quickening.
"More..." she managed, her voice husky. I obliged, my touch growing bolder, more insistent. I slipped my fingers under the elastic of her hot panties, finding the sensitive nub of her clit. She gasped, her body arching towards me. I began to rub, slowly at first, then with increasing speed and pressure. Her legs trembled. The room filled with her ragged breaths. She loves this panty fetish! The pressure from my fingers seemed to be driving her wild with the anticipation of what she could never have...
The situation was becoming messy. A primal need took over. Any moment could bring a cumshot. I know I was close.
