From the angle they were at, I couldn't see the actual act, but could see Mom's blonde head bobbing slowly. Dad let his head lean back on the chair and sighed as my mother knelt between his legs blowing him. Mom started bobbing her head faster and I became aware of my cock starting to throb painfully in my shorts. That throbbing increased when my father grabbed Mom's long hair in his hand and pulled it to the side. I caught a brief glimpse of her face and saw she was looking up at my father, her blue eyes wide as she had him completely engulfed in her mouth.

Mom...