The Invitation

Finally Jack pushed the dress down across his flat tummy, past the suspender belt and finally past the sheer knickers now straining against his engorged cock. Jack let the dress go as it passed his hips and it pooled in a circle at his feet. He stepped from the circle and stood before Sally and Lucy with his arms at his sides.
“Satisfied?”he asked.
“Very!”replied Lucy. “You look great – that outfit really suits you, and the heels do wonders for the shape of your legs.”
“Look–he’s really getting quite excited by all of this,” said Sally, looking at his the tent in his knickers.
Jack looked down. There, past his breasts and past the suspender belt he could clearly see his cock straining against the material of his sheer black knickers and although he could of course feel it and knew it was there, somehow seeing it framed by the breasts, by the cups of the bra, by the suspender belt and by the sheer black knickers served only to increase his excitement, his feeling of naughtiness and his arousal. Definitely the arousal. Because he realised that he was leaking. Down there past all the lace and straps and lovely soft material Jack could clearly see a damp spot on the front of his knickers from the pre-cum that was oozing from his rock hard engorged cock.
“So I see,” replied Lucy. “What do you think we should do with him?”
"I think she is a very horny girl who wants more than anything to be fucked," said Sally with a mischievous smile. “And I think we should oblige her.”
Jack was speechless. He did not want to be fucked. He was not gay, and all this dressing up wasn't going to change that. And besides which he wasn't a 'she!' Anyway, he reasoned, given that he was the only man in the house there was thankfully little danger of him having to defend his anal virtue.
"That's a great idea! Perfect - let's do it!" exclaimed Lucy.

"Yeah, very funny,” Jack interjected. “First of all I am not, in fact, a girl, horny or otherwise. Secondly have no wish to be fucked, even dressed like this. And thirdly I don't think either of you are equipped for the job, so I feel pretty safe," he finished, just a little smugly.