’ ‘John, I’m not a physicist. May I ask you a few questions so that you can show me how physics addresses simple problems?’ ‘Sure, what do y...u want to know?’ ‘Well there is one problem I have had since my introduction to college physics class many years ago. We know that force equals a mass times its acceleration. That means, among other things, that no mass can change its velocity in zero time. Am I right so far?’ ‘Yes, keep going.’ ‘Well, when an object is first moved, from a standstill,. He was only about 19 and I was 23.He said he was from the east looking for work up north where the money was good.His hair was a dirty blonde,longish and curly.He had on a tee shirt a little small for him and slightly torn exposing a brown waist at times and the white elastic waist band of his underpants.That is always a huge turn on for me with boys.He had light blue jeans and work boots. I hailed a cab and told the driver where to take us.I could not believe how polite this boy was.He asked. With each stroke, I could see the pleasure on my wife’s face. This is more than I could handle as I was fully erect inside of Nancy’s mouth. Nancy looked up at me with eyes and then proceed to slide my cock in and out or her mouth. She stopped and took my hand as walked into the bedroom. I felt it was my turn to reciprocate. We began kissing passionately as my hand was playing with her breast. I could hear from the other room, I’m cumming!!!!! yelled Amy. Nancy went on her back and I started. With a final wink she grabbed the waistband of her thong and slowly lowered it. 'What a view!' I gasped to myself as bending forward at the waist caused her ass to frame her pussy perfectly.Turning to face me, she reached up to tuck her shoulder length dark brown hair behind her ears, inadvertently thrusting her chest out as she stood before me completely nude for the first time. I couldn't help but stare. Her pussy was already slightly puffy with desire and had a well trimmed patch of fine.