I had fancied my sister-in-law for some time. She was younger than my wife, but had the same build, medium height, slim with large tits and long red hair. I tried to imagine what she would be like to fuck. If she was anything like her sister then she couldn't get enough. Her husband had left her a few years ago and she had only recently moved closer to us, about an hour by car.

My wife and my sister-in-law had started a get together one night a week; this worked fine as I worked nights and it was some company for my wife. Jane my sister-in-law would arrive Friday afternoon and stay over to Saturday evening. Giving them plenty of time to chat and catch up on each other's news over a meal and a bottle of wine whilst I went to work.

I decided on a plan as I didn't think my wife Sue and Jane would go for a threesome.

Over the Internet I found a site that sold dodgy goods including drugs. I ordered some roofies and a couple of days later an envelope arrived containing a number of white tablets marked with the "Roch" logo.

My plan was simple; I would take a Friday night off with out telling Sue. Then I would make out I was going to work as normal. Enjoy a drink with them before I left home, having spiked their drinks. Give it an hour then I would return home and if what I had been told about the drug was true I should find them at my mercy.

The day arrived, I was very excited at what was to come and the more I thought about it the harder my cock became. I had everything laid on the drugs hidden in the kitchen some cord and other items in the lounge. At about four o'clock Jane's car pulled up outside. She came bouncing through the front door and gave Sue and I a kiss and a hug. We all went through into the lounge and sat down for a chat. I was relieved to see that Jane was wearing a skirt and blouse, no trousers or tights to struggle with!

Around six o'clock I offered to make them a cup of coffee and went out to the kitchen to put my plan into action. I crushed the tablets and stirred them into the drinks plenty of sugar just in case there was an aftertaste. I took them their drinks and then prepared to go to work. I left the house about six thirty and went off to a pub, I kept having to look at my watch as the time seemed to go slowly. I downed a couple of drinks and then returned home leaving my car in the next road - just in case.

I looked through the window and my heart skipped a beat. Sue and Jane were on the couch where I had left them, but their eyes were closed and judging by the way they were sprawled across the cushions they were both dead to the world.

I sneaked in the back door and crept into the lounge, they hadn't moved. I shook Sue and then a bit harder she didn't flinch. I gave Jane a good shake but she was sleeping peacefully. I pulled Sue to the other end of the couch. Now it was time for the final test I lifted the hem of Sue's dress and started to rub the crotch of her pants by now my cock was bursting for release and from the way Sues pants were getting wet and sticky I knew it would not belong before I could strip off and enjoy my sister-in-law.

I then drew the curtains and put on a small table lamp. This gave just enough light to see what I wanted but left most of the room in shadows I arranged Jane's body at the opposite end of the couch so that her arse was on the edge.

I pushed up her skirt until I could see the black panties that she was wearing I ran my hand up the inside of her thigh and was rewarded by her legs parting giving me better access. I could also see a few red curls creeping out from the side of her panties. I ran my finger down the sides and gently pulled until I had enough room to slip my fingers inside.

Her cunt was sweaty but had not yet started to lubricate. I stroked my finger up and down her slit, now it was starting to get wet and she opened her legs further. I started to push my finger into vaginal opening it was tight, Sue had told me that Jane hadn't had sex since her husband had left her which would account for the initial tightness.

I pushed her skirt right up over her hips and as she showed no signs of coming round I was starting to get bolder I undid the buttons on her blouse and opened it up to reveal the black bra she was wearing I pulled the cups down and lifted out each breast. She had beautiful big tits with large dark nipples, I left her bra on and this kept her tits from slipping to the sides. Then I started to tweak her nipples they stiffened nicely and I put my mouth to one and started to suckle whilst squeezing her tit with my hand.

I stripped off my trousers and pants it was such a relief to free my cock which was fully erect and starting to dribble a couple of drops of pre-come. I got on my knees between Jane's legs and worked her panties off her hips and down her legs.

With this obstruction out of the way, I gazed at her cunt beautifully topped off with a red bush. She had shaved the pubic hair from around her cunt lips for a "bikini line" I pushed my finger back into her hole and continued to ream at it working 2 then 3 fingers inside my thumb was rubbing on her clit and this was stiffening and poking through the fringe of sweaty pussy hair.

I parted her ass cheeks and saw her tight little anus the skin surrounding it looked almost black in the dim light. I don't know if she had ever been fucked in the arse but she would be tonight if I could manage it. By now her cunt was lubricating so much I had to put a small towel under her, I withdrew my fingers and put my head down between her legs I started to lap at her cunt the smell of her perfume and pussy juices was going to my head. I had to get my cock into her.

I couldn't wait any longer I put my cock head against her slot and started to push it in. I knew Jane had been well fucked during her marriage as she had 3 children but it was a surprise that she was quite tight. I started to fuck her slowly in and out until I had 2/3rds of my cock inside her.

I looked at my wife and was relieved to see that she was sleeping peacefully still in the position I had left her showing her thighs up to her crotch. I could feel my cock battering against Jane's cervix so I pushed until I felt it start to open and now my cock had full access into her womb as the walls of her cunt massaged my cock Jane's breathing was starting to get ragged and it felt as if she was lifting her arse to meet my thrusts.

When I looked at her face her eyes were still closed and her mouth had fallen open. I wanted to hold off from coming as long as I could so I pulled my cock out of her steaming mound and placed the tip against her lips.

My cock was slippery with her cunt juices so I managed to work the tip in to her mouth I pushed some more and managed to get about 2 inches past her teeth. I worked at this for a couple of minutes, but as she wasn't responding I changed position again.

I pulled her forward off of the couch and draped her face down over a small coffee table. I gently tied her wrists to the table legs and then did the same for her thighs, pulling on the cords and stretching her legs wide open. I now had a good view of her anus. I shuffled up behind her and poked my finger into her arse - it was so tight!

I reached under the couch and found a tube of K-Y jelly. I slipped a good size gob between her cheeks and started to work it into her hole. I lined my cock up and started to force it into her. The lubricant helped and I felt my cock start to slide in. I gave a good push with my hips and the head of my cock forced its way passed her sphincter as it did I nearly passed out it was just so tight and painful.

I kept still and the pain passed, I couldn't see Jane's face but apart from a grunt she didn't seem to be coming out of her drugged sleep. I started to gently push in and pull out it was still tight but felt so good. Jane's anus was loosening now I could get my cock in to its full length.

I fucked her arse for all I was worth my balls were slapping against her thighs, I could not hold off for much longer. I pushed my cock as far up her arse as it would go and then I started to come. I just knelt behind her straining to squirt every last drop into her. At last I was done my cock came out covered in spunk and brown mucus. The same mess was running out of her arse and down her thighs. As I watched she let go a fart and a small amount of shit slithered out.

I got up and opened the door, and quietly whistled. The next minuet my dog Beau padded silently into the room. He was a first cross lurcher/wolf hound and stood about 36 inches at the shoulder. He stalked up behind Jane and with one swipe off his long tongue he swallowed down the shit he then set too licking her arse and thighs clean.

I knew Beau could only lick for so long when faced with a dripping snatch. Because of the pointed shape of his head he could almost force his nose into Jane's cunt and she was grunting in response to the treatment she was getting. Soon enough he put his front paws on the table either side of Jane's hips he was showing about 4 inches of cock protruding from its hairy sheath. He stabbed away, until I aimed it for him when he felt the sticky warmth of her cunt he pushed and in it went.

Beau was getting into his stride now and I could imagine the bony tip of his cock forcing its way into her womb. His knot was showing out side the sheath now and at this point it was not to big. He was bucking fast making his cock piston in and out of Jane's dripping cunt. He gave an extra lunge and buried his knot inside her he slowed down and just rocked back and forth.

I could tell by the swelling around her groin and belly that Beau's knot was blowing up, to hold his cock deep inside her ready for when he started to pump his spunk into her.

With one final lunge Beau shot his load inside her. I held my breath and watched as Beau started to back, up his body moved back but his cock was not coming out, then with a slurping sound his knot shook itself free. Spunk gushed out of Jane's cunt as Beau withdrew his cock.

I was relived has I feared he might have tied with her and I had seen old Beau stuck up a bitch for hours until the swelling went down. I did not want Jane to wake up and find herself tied to a table with a large dog attached to her private parts.

I sent Beau out and then started to clean up. I wiped Jane's thighs and mopped up the mess flowing from her, I took a large syringe and squirted warm water up inside her. I gave her a couple of douches to make sure she was clean. Then I untied her put her panties back on and propped her up on the couch with her head on Sue's shoulder.

I placed her hand between Sue's legs and did the same with Sue's hand wedging it against Jane's crotch. I thought this would give them something to think about when they eventually came round. I turned out the light left the house and left them to their dreams.

I sat in my car and went through the evening's events. Had I really done it? You bet I had I could still feel the soreness around the head of my cock where Jane's arse had snapped shut on it. I drifted off to sleep wondering what to expect when I arrived home from "work" in the morning.