Barging into the bathroom, I stumbled upon stepmom Susan, her hand buried between her thick, toned thighs. Her eyes locked with mine in the mirror, she didn't stop. I stood frozen, watching her fingers dance over her clit, her breathing heavy. Her other hand squeezed her full, natural breasts, pinching her nipples. Enticed, I approached, my cock tenting my pants. She watched me, her eyes hungry, as I unzipped and let my hard, young dick spring free. She guided my hand to her wet, welcoming pussy, and I fingered her, feeling her warmth. But our moment was cut short when dad's car pulled into the driveway.