In a moment of curiosity, I sneak into my stepsister's room, only to find her spread out on the bed, her curvy body on full display. She's playing with herself, her fingers diving into her wet, inviting pussy. I can't help but get hard, and she notices, a wicked smile spreading across her face. 'Why don't you come here and help me out?' she purrs. I don't need to be told twice. I drop to my knees, spreading her legs wide, and feast on her juicy pussy. She moans, her body writhing as I lick and suck, my tongue driving her wild. But I want more. I stand up, dropping my pants, and she grabs my thick cock, guiding it into her tight, waiting pussy. I fuck her hard, doggystyle, our bodies slapping together. She talks dirty to me, her ass shaking with each thrust. I can feel my orgasm building, and I pull out, spraying my cum all over her big, perfect ass.