Secretary's surprise birthday present from me was not a surprise to her either

I had a special birthday present for my secretary, and I wanted to surprise her with it on her birthday. I hid the present in my office, and when she came in to work, I gave her the present. She was surprised, but not really. She had known about the present for a while, and she had been looking forward to it for a long time. She was very happy with the present, and she thanked me for it. After that, we started to talk about other things, but I couldn't stop thinking about the present. I decided to go home and watch some porn to get rid of my horny feeling. When I got home, I turned on the hidden camera in my room and started to masturbate. I was watching some amateur videos of mature women fucking and fingering their asses. It was very hot, and I couldn't help but cum all over my bedroom floor.