Spanking Her Cunt

"Spank my cunt" she demanded. "What!" "Just do exactly what I say" Amanda insisted. We were at a party and the talk had turned to sex as it often does after a few drinks and you thought you were up for anything. A few of the guests seemed to have paired up and gone off to one of the many bedrooms in this grand house. Amanda had been telling me how she liked to be slapped when she was having sex and I confessed I had never done it. "There's a first time for everything" she suggested and took me upstairs by the collar of my new shirt. The first bedroom door we opened had a couple on the bed still fully clothed except the up for it girl was on top of one of my (rather good looking) mates. She had her short skirt hitched up and his jeans were halfway down his thighs, her G string pulled aside and she was riding his hard cock. We closed the door and exchanged glances..not that bedroom then.  " Let's use the hostesses bedroom" suggested Amanda, " she's a good friend of mine, she won't mind she's downstairs entertaining the guests". She led me to a door at the end of the corridor and we slipped in. In the middle of the huge bedroom was a four poster complete with semi-private curtains and silk covered pillows. Amanda led me to it. I was a bit apprehensive about what to do next. I'd never spanked a girl before although I'd often fantasied about it. Like most men of my generation I'd been brought up with corporal punishment, often of a ritualistic kind, so it had obviously left its mark. Amanda's black satin skirt was tight around her and I had been watching her sexy arse with its outline of figure hugging panties all evening. I wondered how I was going to hitch it up enough to gain access to her ripe bottom and give it the spanking it deserved. However she had other ideas. She sat on the end of the hostesses bed and pulled her skirt up over her shiny pantyhose. I could glimpse her cream satin pants underneath. "Spank my cunt" I was shocked but aroused by her demand... "I tell you exactly what to do" Amanda said firmly. " Go and get a towel and four pairs of knickers from her top drawer." She obviously knew where they were kept. I went into the ensuite bathroom and selected the bathrobe as I thought Amanda wanted to change. Opening our hostesses private knicker drawer as Amanda instructed I found rows of neatly arranged panties according to type. I selected a couple of lacy thongs and a pair of of everyday cotton panties. I picked up a black silk suspender belt as an afterthought. I presented them to Amanda. "Will these do?" I enquired "They'll just have to I suppose but you'd better do exactly what I say from now on or one of us could get hurt. Now use them to tie me to the bedposts".  Amanda had taken off her skirt and blouse when I was occupied at the knicker drawer. She plumped a couple of satin cushions under her bottom and draped them in the hostesses bathrobe. I took her proffered hand and using the cotton panties pulled the panties through their crotch and around her wrists so she could hold on. I carefully opened her legs and used the thongs to do the same to her ankles.(I put the black one on her tattooed ankle). Amanda propped herself up on her elbows and I think we both appreciated just how provocative she looked. Her tits poking out of her balcony bra and her wide open long legs encased in shiny hose, the big girl satin body forming knickers underneath tight around her hips. I was still fully dressed in formal trousers and shirt although my hardening cock must be visible through the material. "Now tear my tights" She commanded. I hesitated. "Don't you want to see my knickers? They're vintage you know". I couldn't resist, I tore at the crotch of her pantyhose revealing the oh so tight cream satin underneath. They pressed into her fanny and covered most of her ample bottom and hips. They were indeed vintage and at least gave some protection for what was about to happen. "Now use your belt on my cunt". I slipped my belt out of my trousers and couldn't resist touching my hardened cock in passing. " now whip me down there." Amanda's opened her legs wide exposing the tight crotch of her satin panties and staring straight at me. She looked such a picture with her ripped tights, exposed crotch and tits falling out of her bra. I could see a damp stain between her thighs where she was obviously getting excited. "Go on do it. Don't be shy, be a man" she smirked. I raised the thin end of the black leather belt and slapped it lightly over her knickers. "Do it harder, whip well in" she insisted, raising her bottom and opening her legs as wide as she could. The satin crotch of her panties was a perfect target and I raised the belt and whipped it directly onto her cunt. Amanda yelped. "Again, harder" I really didn't want to hurt her but at least the well made vintage knickers offered some protection. This time I missed and the tip of the belt landed right on her clit. "Oh fuck..she cried and bit her lip" "Give me something to bite on then do it really hard and get it right this time" she demanded. Well it wasn't going to be my cock, much as I wanted her to suck it. I grabbed the black suspender belt and stuffed it in her mouth, the straps falling uselessly down her neck. I left her spreadeagled on the bed while I took my shirt and trousers off, my cock tenting my boxers. I took the full length of the belt, wrapped the buckle round my hand and brought it down directly on the wet spot of her cunt. Even through the improvised gag I could hear Amanda shriek. I stepped back alarmed and watched as she wet herself through her vintage knickers, all over our hostesses fluffy bathrobe. Now I knew why she had requested a towel.. 'Please don't leave me like this' her eyes seemed to be saying. Would I... She could see I was just play acting. I took the suspender belt from her mouth. "Now fuck me you bastard" I didn't need any more encouragement, my cock sprang out of my boxers. I didn't bother to untie her or take her piss soaked knickers off but just fucked her through them, tearing her panty hose on my way and slammed my rigid cock straight into her soaking wet cunt. She strained at her cuffs holding on tight as we both exploded in a frenzied orgasm.  After I untied her we tidied up the bed, put our hostesses knickers back where we found them except for the black ones which Amanda borrowed, hers being a bit of a mess, and put her soaked bathrobe in the laundry basket. Then we took a loving shower together before smartening up and rejoining the party downstairs.