About two hours after we went to bed, I thought my brother was still awake because I heard a noise in his room and I could not sleep, (I think I was w...iting for dad to come in my room, because I was lying in bed naked and just playing with my body) I got up and went into my brothers room and got the biggest shock of my life, I could just see a shadow of a figure and thought it was my brother, I reached out and touched it on the back because it was lying on its side, then I found out it was mum,. Angie, that amazing sex goddess, she just fucking knew right when I was going to explode and unhooked her heels and dropped on me, taking all of me in her warm embrace as the first volumous glob of warm white semen drenched her walls, planting her with my seed."Oh yes baby! That's good baby!" She was back to doing long slow strokes pressed up against me, her hot breath in my ear, edging me on, her perfect breasts digging into me and sending me higher.I grunted loudly, my body seized and my hips. I had a full-scale, fully-charged up erection that was so blatantly apparent, it looked obscene. As casually as I could, I opened the blanket up that was at my side and spread it over my body, pulling it up to my neck from underneath, like it was a duvet. Laura caught my eye and grinned at me. It was a knowing grin. I grinned back with a more innocent, embarrassed one and closed my eyes again, probably a little red-faced.The next thing I knew Laura appeared to check that her mother was asleep. Alice said that would be the Lamia race, they were creatures that had heads and hands like ours but the rest of the body was covered with scales like a crocodile, only smaller in size and thinner. The planet they lived on was attacked by some creatures we had never seen or heard of, and they pretty well wiped out the inhabitants of the planet. To make a long story short the Lamias regrouped and found their attackers and annihilated the entire race. For whatever reason, they became a warring.