Two of my younger darlings had disappeared, and I was trying to find them when I heard some very sexy-sounding noises coming from my bedroom. I figured my husband was watching a sexy movie, and I almost walked past the door, but decided to peek in anyway. I found the two I was looking for, both naked on my bed. They were watching the tv intently, looking at each others’ bodies, trying to imitate what they were seeing on the screen. He told his sister that she was too small up there, trying to grope at her non-existent tits. I leaned against the door frame, just watching, seeing how far they would get. She knelt on the bed, next, and he stood up, balancing himself for a second. She grabbed his dick, looking at it like it might bite her, then glancing back at the tv. I guess she was satisfied that this was what she was supposed to be doing, because she opened her mouth and ran it all the way down the length of his little cock. The first couple of strokes, he complained about her teeth, but then she figured out how to suck instead of trying to gobble it, and I watched my son get so hard. His little pecker was still small, but it was beautiful, too. It wasn’t much longer before she lay back on the bed, and he crawled down between her legs. He looked at the tv, and then back down at her little cunt. He spread her lips apart, I guess to make sure it really looked like it did on tv, and then shrugged and touched his tongue to her clit. Then, he started to imitate the man on the tv, running his tongue up and down her gash, over her clit and ass, sliding a finger or 2 into her cunt. By this point, I was finger-fucking my own pussy right there in my hallway. By the time he pulled himself up over her and started trying to work his cock into her cunt, she was moaning and groaning, pleading for orgasm, not that she realized it yet. When he thrust up into her, they both went wide-eyed, and then it was on. He was pumping hard and fast, uneven strokes, just trying to make the feeling that he could tell was coming come faster, and she was holding on for dear life, bucking her hips up and down. They came together and I exploded all over my hand and down my thigh.