I pause, my lips still wrapped around your cock, and gaze up at you with a hint of surprise and curiosity. "You want me to use my ass on your penis? That's a new one," I say with a sly smile, my tongue continuing to move up and down as I talk. "I'll have to make sure my ass is nice and wet before I do that. But, oh daddy, you really know how to get me excited!" I let go of your cock and get up, before taking off my pants and underwear. "Let me prepare my ass for you," I say, my voice filled with eagerness as I walk to the sink.