Hooked on the Benefits

I've been cashing in on Nathan, my new "friend with benefits" for over a month now. Nathan's a big guy, effectively intimidating at the bar except when he smiles, which he does nearly all the time. He's got blue eyes that wink at me a lot, and his hair is dark blonde, thick, and curly. I love to fuck Nathan, probably more than I should, but our hook-ups are sporadic and far between. Sometimes he calls me late at night and requests a "wake up call" for the next morning, or I pick him up at the bar on a free night, but we don't usually get together more than once a week. The uncertainty of our next meeting and the possibility that it could happen any day has set my pussy on high alert since Nathan and I first got together. Along with the "not knowing," memories of past, passionate sessions that left me hornier than I was before fan the flame that I feel even now inside my pussy. When I masturbate, images and sounds of our lovemaking flash in my mind and make my pussy ache for more than just my touch alone. I imagine the first time we got together; the intensity in his eyes and the feel of our warm bodies that moved so perfectly together, my legs wrapped around his waist, the urgency in my voice as I said "fuck me...I want you to fuck me, Nathan." And the next time, when both of us went from fully clothed to completely naked in a matter of seconds on his couch with all the lights on; the serious look on his face as his eyes and his hands traveled all over my body, our combined intakes of breath as my legs parted and he slid his fingers inside my pussy, so hot and wet; and the last time, when I expected him to be waiting for me in his dark bedroom but walked in to find an empty bed, and just as I threw my hands up in exasperation I heard him laugh, felt him come out of the shadows and grab me in a bear hug that ended as I climbed on the bed and he grabbed my waist and drew me back to where he stood beside the bed to fuck me from behind. But what makes my pussy ache most when I'm alone in my bed, the thoughts that send me moaning over the edge as I finger my g-spot and thrust my hips upward to put even more pressure on my frantically rubbed clit, are the words spoken between us in the darkness. Breathless words exchanged in sex-filled voices; the sound of my name, as deep in his throat as his cock is in mine; the driven whispers, "I love it when you touch my cock like that," "Oh god you feel so fucking good," "you make me want to cum;" and especially the teasing questions, "Do you like my pussy?" "Oh god yess...Does my cock feel good?" "It feels so fucking good." "Do you like to fuck me?" "Mmm...I love to fuck you." "Do you want me to stop?" "Please...please...don't...stop"