Standing up again, Cassidy was teasing us for not being able to get the heights worked out. I got annoyed and then spun the taller redhead around, ben...ing Cassidy's body forward, kicking her legs to the sides, and then dipping to bring my dick up and into line with her pussy.Megan had her hand in Cassidy's crotch by now, rubbing her best friend's clit before taking my cockhead into hand and guiding it into Cassidy's folds while the three of us were still standing, and this time I was able to. Other than pure appearance. There were several reasons, why this was never done on the scale needed for scientific confirmation. Some were opposed to such investigations being done to avoid new occurrences of racial hatred, some were opposed because they did not believe the objectivity needed for true results could be maintained. However, the primary reason for the lack of investigation was the dominant opinion of the majority that: Humans are above breeding. A typical occurrence through human. "Dave started taking the smaller rocks and his master didn't seem to notice. The pile by the tree slowly grew and the other got smaller. The slave was drenched with sweat, his muscles ached, his bare feet burned from running over the rough path and his work constantly got harder because only large rocks were left. His young master's belt pushed him to exhaustion. "Looks like you outsmarted yourself, my poor little slaveboy."The hot sun made the slave's thirst unbearable until he begged,. Jake turned his attention towards Chloe, “How about you?”“I’m in,” She said with a devilish grin before lying on the bed and spreading her legs.Jake climbed between Chloe’s legs and lined up his cock at her entrance, which was dripping thanks to the show she had just witnessed. At the behest of Chloe, Jake was insisted to forgo a slow and steady pace and quickly assumed a rapid pace hoping that it would force another orgasm. The two teens continued fucking at a furious pace until Katie stepped.