When I came home early one day, and heard moaning sounds coming from our bedroom, I must say I wasn't totally surprised to find Steve, who I thought was my best friend, lying naked in my bed with my wife hovering over him while she stroked his cock up and down. I must say, I was totally, fucking TURNED ON by the sight. I held back, short of the door, stealing looks through the crack of the door. HIs cock was rock hard and standing firm as she traded back and forth between her hand and her mouth. By the time she started kissing him, with his precum covering her lips, I had clawed my cock out of my pants and was swiftly pulling it up and down, doing my best to catch up with Steve's progress. When he finally exploded, with my wife watching his cum shooting out onto her naked tits and into her hair, I couldn't hold back any longer and my own ejaculate started its journey up my shaft. As my wife engulfed his swollen head, and he moaned, I too moaned, giving away my hidden location. As they both looked towards the door in surprise and horror, I stepped into the doorway and started spraying my family seed in all directions. Needless to say, our relationships changed that day!!