Sorry that this took so long.
*
My heart was still racing as I stood up, pulled my underwear back into place and walked into the bathroom. I used a facecloth to wipe away the cum that had spattered my chest and neck when I had lost control watching my father and my best friend have sex.
I hurried to my room and picked up a memory stick and returned to my father's room. I plugged the stick in and copied the folder onto it. I put the laptop back in its place, gathered up my clothes and walked back into my bedroom. I lay on top of the duvet and put my hands behind my head and tried to process what I had just seen and heard.
I couldn't stay still though, I had to do something. I got off the bed and moved to my PC. I turned it on, waited for the desktop to appear and the plugged the memory stick into one of the USB ports. I opened the folder and noticed that the files were numbered. I had already seen 1 and 2. I clicked number 3 and the file opened. The view was the same, my Dad's bed, but this time it was empty. I heard something, though, it sounded like my father and he sounded angry. Then he appeared, his hand locked around the wrist of my best friend Sammi, this time dressed in a skimpy maids uniform, all black silk and white lace, with lots of petticoats under it. She looked absolutely delicious. I listened to what Father was saying. Apparently Sammi had been negligent in her duties as a maid and needed to be punished.
My father sat on the bed and pulled Sammi over his lap. Her short skirt rose up, baring the sight of her pantied bottom to the hidden camera and my appreciative father. He savoured the view for a minute, and then with absolutely no warning brought his hand firmly down onto her left bottom-cheek. Sammi squealed in pain and struggled but Daddy held her down and proceeded to spank her until her poor bottom fairly glowed under the sheer black panties.
With a quick movement Daddy had her down on her knees in front of him.
"I'm sorry about that, Sammi, but you need to do better." He said, gently stroking her tear-stained face.
My best friend knelt there in front of my father, and reached out her hand to stroke the growing bulge in the front of my father's trousers.
"Why don't you show me how good you can be, Sammi?" Daddy said.
Sammi opened my father's pants and pulled them and his underwear down and off, then dropped her head and engulfed Daddy's cock with her warm, wet lips.
I watched, breathless as Sammi gave my father what must have been a world class blow-job, her eyes locked on his as she slurped and bobbed and lashed his full hairy balls with her tongue. Daddy is only human and he couldn't last long under those conditions.
"Oooohhhh God, Sammi. I'm gonna cum. Swallow my spunk, Sammi. Take it all!!"
The camera was in the perfect position, Sammi had her lips clamped around the head of Daddy's cock and she didn't move it as my Daddy spunked in her mouth. After the aftershocks of Daddy's orgasm had faded, and his cock began to soften in her mouth, she gently licked it clean, then stood, gave him a sweet little curtsey and moved away, obviously returning to her duties.