Tanned and glistening from the beach, my stepson retreats to his room, only to find me sprawled on the bed, fingers buried deep in my hairy, neglected pussy. I'm lost in thought, the sea breeze still fresh on my skin, and I don't notice him until he's standing there, eyes wide with surprise and lust. I grin, inviting him to watch as I continue to pleasure myself, my big ass bouncing with each thrust of my fingers.