Amy's surprise visit

After paying for our meal, we headed to the lake just in time for sunset. It was beautiful from the cabin's back porch, so we stood hand in hand and watched it sink below the horizon. As darkness approached, Charlie leaned down and kissed me. Then I felt his strong hands pulling up the bottom of my skirt. I leaned against the railing and let him slide my panties down. I could feel his hard cock pressing against my leg through his jeans.

Charlie unbuttoned his pants and let them fall to the ground, then sank to his knees behind me. I felt his tongue as it slid up my ass crack, preparing my ass hole for what was coming next. As he ate my ass, he reached around and started stroking my cock.

"Oh, Charlie," I moaned. It only took a minute for me to cum all over the railing, and then he rose, getting into position.

He pressed against me and my ass opened for him. We had fucked enough now that there was very little pain and a lot of pleasure as he entered me. He started pounding in and out off me at once when....

"Daddy!"

We both jumped and he slipped out of me. Instinctively I pulled my skirt down, covering my cock.

Amy stood at the doorway to the cabin, gapping at us. In a moment of panic I was at a lose for words, but I felt the need to explain myself. But how could I explain this?

"Who the fuck is she?" she asked and suddenly I realized that she didn't recognize me....