I was curled up napping on the dog bed next to Master's chair when I felt him tug on my leash to wake me up. I crawled around to the front of the chair and knelt between Master's legs, saying a sleepy hello as I deftly undid his pants and released his beautiful cock. I kissed the tip, then quickly took all the silken softness of it into my mouth, slowly sucking as it began to grow hard. I love the taste of Master's skin and the way it feels as his rod grows in my mouth, filling it. I swirled my tongue around the head and down the sensitive underside as I worked my mouth up and down on his cock, doing my best to please him, taking it as deep as I could, feeling it begin to push into my throat. Master dropped the leash and put his hands in my hair, taking control of the tempo, pulling my head down onto his rock-hard cock. I could do nothing but give in to him, trying to control my breathing and gag reflex so I could continue to please him as he began to fuck my mouth and throat in earnest. He took his time getting me into his rhythm, fucking a little deeper each time until finally, as he pulled my head down onto him and thrust deeper than ever, I felt his cock begin to swell in my throat and I knew he was going to come. Master held me there for a minute, unable to breathe; I began to feel a little panicky, but managed to hold still until he relented and pulled back, filling my mouth with his jism, and even before he said "Good girl," I knew I was a good bitch who'd pleased her master.