." she said nervously, her hand reaching to brush the still-red marks around her throat which were barely hidden by her turtleneck. She looked at Robb...e oddly - he looked messed up. His black hair was strewn everywhere, his face pallid and his eyes almost manic. The bags beneath them deepened the air of craziness around him and Maxine backed away almost impulsively."Bitch!" the 18-year old screamed at his sister. "You've been in my room again, haven't you!?" Robbie demanded answers with his. Then, she started grinding her cunt and clit into me, and then moved her hips up high, to the tip of my cock, then slowly back down, engulfing my dick with her slippery love tunnel.We started fucking slowly at first, then, as is the way with all lustful lovers, started pumping our hips together faster and faster. I had never felt her so wet! The thought of the risk of getting caught, and of getting away with fucking, naked in the study, was incredibly arousing!Within a few minutes her breathing. . Ah..” he whispered, breathless as her cock worked in and out of him.“Sh..” she hushed him, her tongue once more pressing between his full lips to meet him in a passionate kiss, she could feel how close he was without him having to tell her.His hands gripped desperately at the sheets as he felt his climax rise and erupt, his load suddenly shooting from his twitching cock, white lashings of hot cum streaking across his stomach and between their two bodies as they slid against one another.For. Looking at the other two girls she gave a weak attempt at a smile and asked if either of them had been graded but on hearing the response that neither of them had been the look of thunder returned and in an effort to lighten the mood Tracey nervously raised her hand and admitted that she had been graded.A look of total surprise crossed Emily's face,?Are you sure Tracey, I meant meat graded.??Hum yes,? she had replied before shyly raising her skirt to her hip revealing the capital A lasered onto.