After that satisfying, secret fuck, and Cindy's whispered words, I could not concentrate at all for the rest of the movie.
When it was over, we both got up, Cindy kissed aunt Christine good night, and then gave me a big hug, squeezing my ass, and kissed me good night as well, announcing that she was going to take a shower and then go to sleep.
Aunt Christine went into the kitchen to clean up from dinner and I wandered upstairs a few minutes after Cindy did, and I saw the bathroom door open just a bit.
I peeked in, only to see my niece standing sweetly naked, her beautiful body all there for me to see. Our eyes met through the slightly open door, and she smiled knowingly, presenting herself to my view. She reached her hand to her crotch and slowly wiped between her lips, showing me that my cum was still dripping from her pussy. And then she slowly closed the door to start her shower. That was just a preview.
I changed into my pajamas, and headed back downstairs to help Aunt Christine finish cleaning. We both headed up to bed, but instead of relaxing for sleep, all I could think about was how much I wanted my niece's body.
A few times, I thought aunt Christine was sound asleep and almost got up, but I had to be patient. Just after midnight, I could no longer wait, and I slipped carefully out of the bed, not disturbing her at all.
I left the room slowly, and closed our door. I made my way down the hall to the guest room. I opened the door quietly and I saw Cindy's beautiful face, lit by the full moon light coming through the window, and I saw that she was sleeping, but since it was a warm night, she was on top of the sheets, without covers.
I made my way over to the bed, gently rubbing her thigh. Her body reacted with her legs separating instinctively. My hand moved to the small triangle of material that covered her pussy. I began gently caressing her, slowly increasing the pressure.
Leaving my hand there, I gazed up her body, pausing at her chest, where her breasts were barely covered by the silky top she was wearing. And with my hand still rubbing her, Cindy's body was reacting even while she slept, and I saw her nipples pushing up at the thin material.