‘Sam? Sam are you ok? Are you ill? Shall I call for an ambulance? Sam are you in pain?!’ her voice rose slightly in panic, as she rushed back to h...m and laid one hand on his back, and the other flat on his chest as she tried to straighten him up. ‘Sam for god’s sake… Talk to me!’ she begged. It was the final straw. He could not help himself, he could not stop himself… Thought went out of his head, and need came in. He let out an anguished groan as he reached for her and pulled her tight against. He fumbled at his school trousers, and I kind of forgot why we were here. And who I was. I was genuinely shocked at how well-developed Michael’s cock was: it was as big as mine. I’d been expecting a spindly little twiglet but under the school uniform, Michael was a man already. I gasped in genuine shock, although of course the noise came out of Petra’s mouth. Michael smiled, pleased with my reaction. Little did Michael realise that it was Justine’s fingers tightening around my cock and. I was immediately told to remove my clothes, that I would be naked at all times there. She fitted me with a pink and lavender collar. She said she wanted accurate tracking of the date of my last orgasm and so she told me to masturbate for her. After I was fully hard she had me stop so she could measure, in case anyone asked. I measured out at 4.25 inches long and 3.75 inches around. I was then allowed to finish, catching my seed in my hand and licking it clean.The chastity device was then. "Oh, Mr. Roberts, how naughty," she said. She had a twinkle in her eyes as she scooped up the tiny outfit. She disappeared into the bathroom and I waited.About five minutes later, the door to the bathroom opened and there she was. The sheer white top was tied in the middle, just below her cleavage and I could see the tiny black bikini top was barely containing her large, firm breasts. The top had very short sleeves, almost triangles that covered just parts of her shoulders. Her youthful, flat.