That was not acceptable to Christina.“Sam, assume the position immediately. You will get disciplined for not reacting immediately. Do it now!!”Sam...dropped into the position, but her last look at us showed her fear at succumbing to this stranger. Christina walked over to her and felt her ass. Then she suddenly drew back her hand and smacked her hard on the left check and then the right cheek in quick succession. Sam let out a large gasp each time and then seemed to whimper a little. Christina. Suddenly grasping her ass he lifted her up and stood up. She grabbed him around the neck as he carried her to his desk. Laying her down on it he let go of her ass and grabbed her legs. Crossing them and leaning in he began to frantically pound her pussy.She reached back and grabbed the edge of her desk to brace herself as her body jolted violently with each thrust of his cock in her aching pussy. She could feel the slap of his balls banging loudly against her ass as he continued drilling her. I know I experimented in various ways though I don't recall anything specific now, probably because the things I did either failed utterly or simply didn't give me what I was looking for. They may have worked in that they made me cum but didn't give me enough of a thrill to warrant repeating them, and the curiosity never went away.In my teens I developed a massive crush on a girl named Paula who lived nearby. She was achingly pretty, with long silky hair & curves in all the right places. I. Her game was on.Like last week she pressed her nearly naked body against me, kissed me passionately, rubbed her breasts against my chest through our clothes, and again ground her crotch against my hard dick. She stopped kissing me and I started to ask who she was and once again placed a finger against my lips and once again said, "Don't break the spell." She stepped back, pulled her dress over her head, and proceeded to undress me. I didn't know where this was going, but I had a delightful idea.