Masturbating with the thought of a big dick fucking my big ass

I've always been a fan of big dicks, and I'm sure you are too. The thought of a huge one fucking my round, juicy ass makes me so horny. It's just how I like it - big and thick, stretching me to the limit. As I lay on the couch, my fingers dance over my natural tits, my nipples hardening in anticipation. I'm lost in my own world, imagining the perfect cock filling me up. My hand moves down to my pussy, rubbing it in rhythm with the vision in my mind. The pleasure builds up inside me, making me moan in ecstasy. I can feel the climax coming, my body trembling with the intensity of it all. And then, it hits me, a wave of pleasure that leaves me breathless. I'm spent, but the image of that big dick still lingers in my mind, making me yearn for more.