I just kind of sat there and Cathy said, "Come on Rob, help me out here, make it look good" and she kissed me again. "Come on Rob, make it look real" ...nd so I kissed her back.While we swapped tongues Cathy kept looking over my shoulder at where Harriet was hiding. Cathy broke the kiss long enough to mutter, "Stupid fucking bitch! Why doesn't she go back inside" and she went back to frenching me. A minute later she grabbed my left hand and put it on her breasts."Come on Robbie, we're hot for. He retrieved the end of some straps that was attached to the bed poles behind her. Had he been expecting her, she thought? Impossible, she had not even known herself that she was ... She gasped again as he tightened the straps that were now attached to her thigh cuffs. Her knees where pulled up and to the side, spreading her wide for him. Apart from the socks she was completely exposed to him now. She blushed.And then she gasped. He just pulled his fly down fished out his hard cock and pushed. Suddenly his mouth connects with your hot soaking swollen pussy and an electric shock hits you and you moan uncontrollably feeling his tongue dart inside your pussy lips tasting you. Pulling you onto the top most bench he carries on probing you releasing you legs as he does so, shaking with his touch you don’t move as he starts to pleasure you more. ‘Please stop’ you try to say but all you hear is the soft ‘please’, rolling your head from side to side trying to say no the man’s cock comes into. "I - uh - forgot my books," I stammered. Her eyes darted this way and that, flicking back to me, then scampering aside.I stood on the stairs, about six steps up, one foot on the next step down from the other, hand on the railing. I was that aware of how I was standing! "It's okay to look. I've been stared at by at least half the school at this point," I reminded her.She was blushing. "Oh, okay - uh - sorry. Your staff - uh, stuff - is in the kitchen."Ignoring her Freudian slip, I advanced down.