My own flesh and blood, my sister was causing this. I was torn between stepping out into the room and stopping them or continue with my soiled thought... of maybe seeing considerably more. Sexual desire always wins. Cautiously his belt was unfastened followed by his pants button and then the zipper came down. She didn’t stop there either, distorting his body relinquishing to her desires, his pants ended up at his ankles in less than a mere minute.His body was in the identical condition as mine,. The action stopped momentarily as she got onto all fours and crawled over me, briefly sucking and licking my nipples before diving into my pussy again. At that point, the guy – who I realised now was Greg – mounted her from behind and started to pound her, hard. People say there is nothing sexier than watching another couple have sex, and this is almost true – watching another couple have sex whilst the woman is going down on you is simply another level!It was no surprise that I climaxed. With a couple of steady breaths, she took in the bathroom. It wasn't much more than the bedroom, but at least it was clean. Emma stood and placed her hands on the sink, staring at herself in the smeared mirror. 'You can do this. It's what he wants. It's what you want.' She nodded, asserting herself in the situation. She tried to give herself a seductive smile, practicing for when she stepped out of the bathroom to greet him. Running her hands through her hair, she sighed, feeling pathetic as. ”Pushing him onto his back, I kissed him and said, “You just lay back and relax and I’ll see what I can do to help you.”I started to gently kiss his chest, stopping to suck on his nipples as I made my way down his torso. I could feel him twitching in my hand. By the time I made my way to his groin, he was starting to stiffen. Bypassing his penis, I made my way to his balls. He was growing in my hand as I started to kiss his balls. Taking one in my mouth and gently sucking and licking it.