I told Billy to go upstairs and take a shower, but not get dressed. I went up to my own room and took a shower myself. What with the fun we'd had in the garden and the spanking I'd so recently administered, my sex was sopping, and I easily brought myself to a climax before getting myself clean.
I put on a tiny black bra and matching g-string, then took a white blouse and microscopic green miniskirt from the closet. I carried them into Billy's room.
Billy, freshly showered, was sitting on the bed, a towel around his waist. I put my skirt and blouse on the ottoman and brazenly bent over Billy's suitcase. I found a couple of clean thongs, one black, one purple, and a white tanga. I choose the purple thong, along with a pair of white cotton chinos, white short-sleeved shirt and white socks.
I took them over to Billy, stood him up, removed his towel, and began to dress him. Even in its flaccid state, his penis was a delight to behold. I got him to step into the thong and pulled it up, boldly adjusting his penis inside the pouch. Then I put on his white cotton socks. They looked sexy with only the thong for company. Sadly, I got him into his chinos. I was about to pick up his shirt when I noticed something. His chinos had no pockets at the back and, being designed for summer, were unlined. The cotton was generously thin, so that the waistband of his thong showed vaguely through. To a careful eye, it was a dead give-away.
I told him I had a top that would really suit him and returned to my bedroom, hoping that he wouldn't catch a glimpse of his butt in the mirror. Luckily, he sat down on the bed as I left the room. I fetched a white singlet that had belonged to an ex-boyfriend. It was tight and short and Billy, being muscular, had the body for it. I returned with it and slipped it over his head. It didn't quite reach his belly-button.
'Wow! This is cool,' he said.
Little did he know!
Finally, I put my blouse and skirt on in front of him and we went downstairs.
We went into the kitchen. I asked Billy to fill the kettle for some coffee. And yes, as he leaned over the sink, the seat of his trousers was drawn tight across his butt, so that the waistband and the little triangle at the top of the under-strap were both enticingly visible.
'I want to buy you some underwear,' I said.
He straightened up.
'Underwear? Why?'
'Because I love the way you're going to look in it.'
Billy laughed.
'I know a brilliant shop,' I said. 'I'll take you there.'
'Fine.'
We took the Tube into town and stepped out into blinding sunlight. 'Thank God!' I thought and fell behind Billy for a moment - and sure enough, the purple waistband was vaguely visible. I took his hand and walked beside him, proud as Punch. After we'd been walking for a minute or so, a woman suddenly rushed past us, stopped, turned to face us, grinned broadly, then rushed off on her way again.
'What the hell's she got to grin about?' Billy asked.
'I can't imagine,' I lied.
I led Billy to a place I know very well. A small store. Downstairs is a women's lingerie boutique, but upstairs, accessed via a separate entrance, specialises in men's underwear. Several men were furtively flicking through the racks, pretending to be more interested in the boxers than the thongs. To my delight, the assistant was a young woman. She can't have been more than about twenty.
I got straight down to business. I knew what I was looking for. First I found some skin-tight, black cotton-and-lycra trunks with very, very, very short legs. Next a dark blue full-backed tanga. A bright yellow three-quarter-backed tanga. A mid green half-backed tanga. A bright red quarter-backed tanga. This I particularly liked, as the back panel was exactly the same size as the pouch, only flat! A dubious turquoise silk thong and - finally - a tiny, tiny red nylon g-string with plain black elastic waistband and under-strap. All of which I bundled into Billy's embarrassed hands.
I thrust him to the pay station, where he coyly deposited the underwear on the counter. The assistant scrutinised each item separately, checking they were all the same size and slowly removing the price tags.
'Just about one of everything,' she finally laughed.
'Ah! Just a minute! That reminds me,' I said, and rushed back to the racks of underwear. I returned to the counter with a lovely little blue and white striped thong.
The assistant raised her eyebrows in interrogation.
'This will be great for spankings,' I explained.
Billy turned crimson.
'Yeah, right,' he said, trying to make it seem like a joke.
I paid and we left the store.
'Why so many?' Billy asked as we descended the stairs.
'You'll see,' I mysteriously replied.
'I'd like to ask you a favour,' I said, as we sat over lunch in my kitchen about an hour later. 'A very big favour, in fact.'
'What is it?' Billy asked.
'It's one of the reasons for all the underwear,' I replied. 'I want you to strip for some friends of mine. Women, of course. In my living room. This afternoon. And not just strip. Give yourself an erection. Show us your butt hole. Shove your finger up it, if you dare. Jerk off. Come. Right in front of us. And enjoy yourself doing it. Can you do that?'
'Wellβ¦'
'Oh, and I want to video your performance. If you don't mind. All right?'
Billy was speechless.
'Please!' I begged.
'All right, then,' he said very quietly.
I phoned six friends of mine and invited them round. I told them I had a surprise for them. I knew what they'd be thinking. They'd be thinking I'd invested in another raunchy video which I was desperate to share with them. Some guy stripping and giving himself an erection. Possibly a guy being paddled and caned. They'd been through it so many times before. They'd never guess they were going to see a live show.
Once I'd made all the phone calls, I took Billy upstairs to get dressed. I removed his trousers and thong, but left the singlet and socks in place. I knelt beside him with the bag of new underwear on the floor in front of me. His beautiful prick was inches from my face. First, I got him into the tiny red g-string, then the thong. Next came the quarter-backed, half-backed, three-quarter-backed and full-backed tangas. Finally, the skin-tight trunks. Seven items of underwear, not counting the singlet! The dance of the seven veils came to mind.
'I think we'll have you in your underwear from the start,' I said, 'but come with me for the finishing touch.'
I led Billy to my bedroom. He stared in amazement at the framed magazine photos on the walls - a big round ass, anus exposed, balls and prick hanging down underneath; a guy in a shower with the beginnings of an erection; a close-up of a fully-erect prick; a guy mid jerk-off. Then he noticed the piece de resistance on the back of the door. A life-sized poster or a guy at the moment of climax - head thrown back, nostrils flaring, dick firmly grasped, a stream of semen shooting up from the tip.
I rummaged about in my wardrobe and found an ex-boyfriend's cowboy hat. I planted it firmly on Billy's head. He looked ravishing.