A few faded marks on her abdomen perhaps, but the flash had been too quick to memorize details.That was the next step in our voyeuristic teasing, a da...ce that was getting rather risque, to say the least. No complaints from me! How to reciprocate? Or turn the situation even more daring? Ahh! The old . . - whoops! I mean the reliable back-rub ploy. It was good the other night for putting her to bed and getting her to sleep; would it be useful this eve for getting to her into bed, not for. The skirt was a little too short but that was the point. My plan had failed! We arrived back at his house and it was decided that he do some yard work. He went in the back for a while and started. I remained on my computer passing the time. Then I heard the back door open. He came in the house and his shirt was gone. I felt my face get really warm and my eyes glaze over as I stared at his toned lean arms, and toned stomach. His hair was in all the places it’s supposed to be. My favorite. Then she started sucking and sliding up and down, slowly at first, then more intensely. It was FUCKING FANTASTIC! I undid my shirt and dropped it on her desk. She kept my cock in her mouth, but took her tweed jacket off and dropped it behind her. Her blouse followed, revealing some extremely nice underwear and a superb pair of tits - far better than you would have imagined and, of course, always concealed from view by the tweed jackets she wore. She lid her hand around my balls, gently. They would fit, I knew that, but they would stillshow beneath my beautiful dress. I knew that, too.I rummaged around my mothers' panty drawer, pulling out panties ofvarious colors and styles. Blacks and reds, yellows and even a fewwhites that looked far to similar to my own underwear. I pulled outbriefs and boy shorts and finally I found a few thongs. It was at thatmoment that I knew why thongs were invented. It wasn't because theywere sexy, though they were. No, it was to hide the tattletale.