You think your family is the one part of your life, you fully understand and trust. Well I know differently as of early this month.

My mom and dad have always been open and free spirited. Often going to places around the world others wouldn't dream of, or dare to go. Their optimism about other people being kind, accepting and caring has always frightened me a little. After my discovery last month, I feel I need to at least take on some of their values, but am finding it difficult.

They're both less than twenty years older than me. And both of them have unconventional jobs, which enables them to travel a lot. From an early age I grew to depend on myself, as they would be off someplace either working or considered too dangerous for me to tag along. So at the age of eighteen I got my own place, where I still live. Each week I'd go and visit them and earlier this month was no exception. The difference was I'd not told them I was calling by.

Opening the rear door to their home as I usually do, it was clear they were having sex or watching some. The sound was of a woman moaning, then strangely a man with a similar moan. The voices sounded familiar, but the feeling I got was something wasn't quite right.

Moving through the kitchen and on into the lounge area, I stopped by the door and slowly peered in. What I saw has altered my opinion of my parents and our relationship.

My mother was naked with her back to me. She was squatting over a mans face, at the same time she was sucking off another mans cock. Neither of them was my father. I knew this, not only because I know my own dad, but because on the sofa across from my mom, was my father. He was knelt up on the sofa and behind him was another man. A large man, who had his massive cock pounding away at my fathers asshole. Stood only feet from them was somebody I actually recognised, someone other than my parents, It was my mom and dads neighbor and he was holding a digital recorder, one I'd bought them for their Christmas present. Not one of the men having sex with my parents had I seen before and all of them were black.

I watched on in utter disbelief and complete shock. It was like I was watching someone else. But the reality of what they were doing sunk in especially, when I heard my father shout over to the two men who were with my mom "Isn't it about time you guys fucked her again". Only then did I get to see the sheer pleasure on my moms face, as they all moved over to near where my father was still being fucked.

As one of the men lay on the floor close to the sofa, my mom stepped over him, lowered herself and mounted his enormous black cock. The other guy got in behind my mom and was about to slip his smaller cock up her asshole. That was it for me, I'd seen enough. Re tracing my steps I walked out of my parents home, got into my car and drove home in a blurr of sexual images flashing through my mind.

They rang the next morning to check if I was calling by that evening, I didn't answer then and haven't returned their calls since. I know they've round to my apartment, but I either don't answer or I make sure I'm out. I don't know what to think anymore or how to even speak to them. It's their lives I know, but there is being free and open and then there is being a couple of sexual irresponsible idiots.