Those were the best times I could conveniently watch her without any guilt. She really had such a sexy body. Few times I managed to push her skirt up ...nough to admire her bulging thighs and buttocks. Sometimes I even got to her bra and heavy upper cleavage when the top buttons were left open (don’t know whether she left the buttons open intentionally). On a Saturdays we had half-day in office so I came back early as usual and freshened up with a bath.I had changed into my bathrobe when I. I removed her t-shirt. She was in her chemise and shorts.Her boobs were slightly visible it was soo lovely and tiny in a size of a larger lemon. (as it is in growing stage)I removed her shorts she was in her chemise and panty. She sat on my lap. I hugged her and started the videoToday I played a fully qualified sex video. She was going to watch the intercourse, cumming and blowjob for the first time.I started playing the video first few minutes showed a couple removing their dresses and having. ? It wasn?t 5 full minutes and hertightness mixed with how hot her rectum felt was enough to send me over theedge.? I peeled her cheeks apart allowingme to get deeper and I buried my cock inside her as the orgasm started.? The cum seemed toshoot out of me like a pressure washer.?I came very hard and it felt like more than I had come in ages as itpumped and pumped and sprayed into her.? OnceI was done using her like an inflatable doll I slid out letting her pantiesfall back into her crack.? ????. . and I was. Last night was the best night of my life! You shocked me when you whispered in my ear." She giggled for a moment then turned and hugged me and kissed me all over my face.Turning to Sandy I said "I whispered in Cassie's ear and asked her if she wanted her uncle's cock in her pussy."Sandy looked at me with a big grin. "I noticed you whispering something although I couldn't hear what you said. I also noticed the shocked look on Cassie's face." Uncle, I was shocked and then realized.