As the school bus rattled down the road, I couldn't stop staring at my step sister, Sarah. She was always teasing me, but today was different. She slid her hand onto my lap and started rubbing me through my jeans. I tried to resist, but her touch was too much. She whispered in my ear, I know you want it. Let me make you feel good. I couldn't resist any longer. I unzipped my pants and let her hand do the rest. With each stroke, I felt myself getting closer to the edge. And then, with a final squeeze, I exploded in pleasure. Sarah smirked as she wiped her hand on a tissue. Schoolbussex has never been so much fun, she whispered before getting off at her stop.
