She parted the top of her purse and cautiously showed me some shiny black fabric loose inside. Her panties.My jaw dropped open. She grabbed her purse ...nd headed for the hall attendant’s desk. A second Friday in a row, and she was demanding sex in school again. She’d turned me on all day, and was giving me the full court press at the end of the day.I gave her just a few minutes before I excused myself to the attendant’s desk and got a pass for the bathroom. I rounded the familiar empty corridor. The way the dirty farmer used her in the dairy shed stillmade her shudder the picture of her sliding back and forth over the shit strewnfloor, tits leaking and trying to swallow the filth was a cause of deephumiliation and a mind blowing orgasm. Afterhaving had no contact with Triny for a month, in truth Susanne was avoiding herafter the muck spreading saga . Susanne arrived home, as she entered herflat she could hear mewling noises coming from the bathroom on entering shefound a used nappy. The answers were all short. Any time I asked what she wanted to do, her answer was "I don't care" or "Whatever you want" or something like that. There was none of the usual excitement, no "Let's try this" kind of thing she'd usually come up with.I decided if she wanted to act that way, it was her problem and I wasn't going to let it ruin my day. I just opened the cabinet and took out the box labeled "Experiments 1-6" and put it up on the counter. It had a little metal stand with six test tubes. “You throw good parties. Lots of sex, no screaming matches or fights. Nobody got drunk and threw up on anybody. Just people having fun. Even Kay’s meltdown didn’t spoil it.”“I don’t get a chance to have parties very often, at least not on this scale. I live alone in a nice apartment in Suntree. It’s only big enough for five or six couples. There are too many retired people in the homeowner’s association and they’ve banned sex in the community pool area. That puts a damper on what my guests can.