Or maybe it was the fact that we couldn’t seem to escape from either being around his parents or his little brothers. Either way, I was feeling terr...ble. But in the seconds that ensued the above thought, there was a commotion above us and Colt’s dad called him upstairs. I followed him up the stairs where a gift of heaven awaited. His mom and dad were taking his brother to his baseball game, leaving us entirely alone for once in a decade. As we waited for them to leave, Colt and I sat upstairs. I got on my knees and spread her legs, exposing her clean shaven pussy. I separated her lips and buried my tongue in her slit. I began to suck on her clit and massage it rhythmically with my tongue. Marie was moaning, rubbing her breasts, and pinching her nipples. Her moaning increased and I could tell she was building to another, even stronger, orgasm. I kept working her clit with my tongue and could hear her pleasure build. ‘Yeah, yeah, yeah, yeah…. AAAAAAAHHHHHHH!’ she exclaimed and again. The reason was to provide a broader mix of genes—the founders of Three Valleys had only numbered a few dozen, not enough to avoid inbreeding. They'd had a steady flow of people attracted to the lifestyle, but every girl knew they needed more diversity in the gene pool; it was something girls were taught in their first Health classes.Some women would attend parties, leaving the biological father of a child to chance. Others would pick out a potential biological father and do an exclusive with. On the other side of the room, Mike and Jake had moved Laura over to another smaller couch and had my slutty girlfriend sitting between them both.Her dress had been pulled up around her waist and her legs were now resting on their knees. Both men were massaging her thighs, very close to her exposed pussy lips. Mike was even circling his fingers around her swollen clit, making Laura moan softly. Jake was doing the same around her rosebud.I saw her juices were leaking out of her little swollen.