Quinn started stroking Holly's wet slit with his large fingers, moving with gentle care at first, like caressing the petals of a dew-coated flower. His mother felt weak, barely believing a guy as big and muscular as her son could have such a delicate touch. Yet the deeper her moans of pleasure became the more pressure she felt from his fingers. When he trapped her swollen clit between his thumb and index finger, slightly pinching the small, protruding nub, Holly was afraid her legs would go out from under her.

He massaged her clit in circles for a long time before sliding a long, thick middle finger into his mother's...