The Invitation

It seems that she let her boyfriend, whom she loves to death, take some pictures of her naked and masturbating and things like that, and he went and showed them to someone else. Now she needs to take steps to make sure that it never happens again. But she might need a hand. That's what friends are for, after all. Now," she went on. "I think that you should be a good boy and do as you are told. Who knows - you might even enjoy it! And of course if you try hard enough then she will forgive your little betrayal. After all, she is very forgiving and she loves you very much! Now," Lucy said. "Show me your knickers."
Jack swallowed. He could feel himself starting to blush, the heat rising in his face. He knew that it was a fair cop - that there was no way that he should have shown Mark the picture and that he was lucky not to have been dumped on the spot. "OK," he said. "I'll show you my knickers but then that's enough, OK? After that I get changed."
"Oh, I doubt it," Sally said with a bit grin on her face. "Not until we have done with you! Now get on with it. And put on a show!"

Reluctantly, Jack stood in the middle of the room, acutely aware of the feminine clothes that he was wearing. His whole sense of himself was somehow thrown out by it all - not least by the completely different stance that wearing the high heels made him adopt. He could feel the swish of the dress around his legs as he moved and the way that it swept against his shaved and stocking clad legs. He could feel the straps of his bra as they gently dug into his shoulders and the subtle way in which his breasts pulled against his shoulders and altered his balance slightly. He could feel the suspender belt gently gripping him around his waist and the straps that went down to the lace tops of the stockings brushing against his thighs, but most of all he could feel the way in which his cock and his balls were held by the sheer knickers that he was wearing. The knickers whose lace and elastic he could feel pressing into his flesh and rubbing against his shaved crotch. The knickers that Sally had picked for him in a shop in Oxford Street. The knickers that Sally now wanted him to show Lucy.