It happened, one day in June I was visiting Cathy my girl friend. The phone rang, it was the girl next door asking if we wanted to come round and share a bottle of wine. Cathy told her OK, so off we went.

When we got to her back door we found that it had been left open for us. We went inside and Cathy called out, "Were are you Liz?"

"I'm upstairs," Liz called down to us, "come on up and make yourselves at home."

We climbed the stairs, the door at the top was wide open. And there sat Liz on the john taking a piss. She smiled at me and asked me if I liked what I saw as she said it she opened her legs even wider giving me a great view of her shaven cunt, dripping with piss. Before I could reply Cathy pulled me into the lounge giving my cock a good squeeze as we went through the door.

We slumped down on the sofa, and feeling horny I started to kiss and fondle Cathy. My hand went between her legs and found that her pussy was soaking the site of Liz flashing had obviously had an effect on her as well.

Liz came in carrying 3 glasses and a large bottle of supermarket "plonk" she sat on the floor in front of us and proceeded to pour out 3 generous measures.

We soon dispatched that bottle and were preparing to start on a second when with a clatter of paws Butch, Liz's large red setter arrived in the room. He seemed very happy to see us all as he went from one to another for a pat.

Liz was still on the floor in front of us and was pushed on her back laughing when Butch jumped on her. As she fell her skirt bunched up and Cathy and I were treated to another glorious view of her cunt. She made no attempt to cover her self as she rolled around the floor. Eventually she pushed Butch off and lay there laughing.

Butch moved away, but he must have got a whiff of Liz's exposed pussy as he turned and stuck his nose between her legs. After a couple of snorts he started to lap at her cunt. Liz was moaning and spreading her legs wider to allow him better access.

I glanced at Cathy and noted that she was totally absorbed by the spectacle-taking place at our feet. Cathy even hiked her skirt up and put her hand between her legs and rubbed her clit her other hand rubbed my cock which was growing rapidly.

It was then that I noticed Butch had an erection as well, and Liz was gently rolling the sheath back and forwards exposing more of his pink cock.

She looked up at Cathy and said, "Have you ever been fucked by a dog?" Cathy nearly choked and she replied "no, have you?" Liz said, "I'll let Butch fuck me if he can do you as well. It's an experience you won't forget!" Cathy was in two minds but what with the amount of wine she had drunk and her natural curiosity to try something new she finally agreed.

We settled back on the couch Cathy had unzipped me and pulled my cock out for Liz to admire, she crawled over on all fours with Butch in close attendance sniffing at her ass. She reached up and closed her hand around the shaft of my cock and drew the tip to her lips.

After a couple of licks she sucked the head into her mouth. Butch was desperately trying to mount her, so she stopped and turned sideways to give us a good view. She pulled her skirt off and then got in position.

Butch just seemed to walk up behind lift his paws onto her back and sink his cock straight into her waiting cunt. Obviously he had done this with Liz before as in one fluid movement he had buried his cock deep inside her, then with a grunt he started to fuck.

Cathy and I watched fascinated as the dog's cock grew thicker and longer, when the knot appeared we both gasped. Liz was sweating profusely as she pushed back to meet each thrust, there seemed to be no stopping Butch and with one extra hard thrust his knot disappeared inside.

Liz let out a squeal "I'm coming oh fuck me harder." Butch dually obliged and then his strokes grew shorter and faster, forcing orgasm after orgasm from his mistress. He finally dismounted pulling his swollen cock out with a loud pop; spunk gushed from Liz's swollen cunt and ran down her legs to form a puddle on the floor.

Liz rolled over on her back propping her self up on her elbows she looked mischievously up at us. Her legs wide spread allowing us to look unhindered into her cunt.

"Wow she said that was something, looking at you two I can see you enjoyed it. It's going to take Butch about 10 minuets to recover. How about you stick that thing of yours in Cathy's cunt before you burst."

Cathy was panting beside me and I knew by the sweet smell coming from between her legs that she had come and was ready. With out a word passing between us she swung her leg over my lap so that she was sitting astride me. I reached between her legs, rubbing her sopping gash with the back of my hand.

I grasped my cock and guided the head between her cunt lips. When Cathy felt I was in position she sunk down and swallowed my cock. Liz moved closer and I could feel her tongue licking at my shaft as Cathy rode up and down on it.

Cathy squealed as she came but also because Butch had taken over from his mistress and was licking around Cathy's arse hole and down to my balls, which were lathered in Cathy's cunt juices. I grabbed Cathy's hips and forced my cock up inside her and came with a mind blowing force I had never known my balls to produce so much spunk.

The three of us cuddled on the couch trembling from our exertions. Cathy was in the middle with Liz one side and me the other. Liz gently tugged on Cathy's knee, nodding at me to do the same. We parted her legs and Liz stuck 3 fingers up her cunt.

Cathy writhed and moaned under Liz's touch, of course it wasn't long before Butch wanted to join in. He started by lapping around his mistress's fingers, but one by one she withdrew them until Butch had Cathy's juicy cunt all to him self.

Liz had now reached under him and was gently wanking him back to life. He had about 4 inches of cock exposed when he reared up and placed his paws either side of Cathy, the tip of his cock was very close to her cunt. Liz and I pulled Cathy forward then Liz took hold of Butch's cock and stroked it up and down between Cathy's cunt lips.

Butch was hunching his hips and when he next pushed forward Liz guided the tip into Cathy's cunt. As soon as he felt the warmth surrounding his cock he started to push harder as he pulled back it could be seen that his cock was swelling up.

Cathy's breathing had become shallow and she started to come, she was almost screaming as Butch fucked her harder and deeper than she had ever been before. She was on the edge of the couch bucking for all she was worth, Liz nudged me and said watch this, I looked and saw that the knot at the base of his cock was exposed and was already the size of a small apple. With one hard push he forced the knot into Cathy's cunt. Butch was now in serious fuck-mode, Cathy was having multiple orgasms and crying out with every stroke.

Liz came to my side of the couch and squatted astride my legs she grasped my now rampant cock and forced it inside her, the harder Butch fucked the faster she bounced up and down. Butch was growling quietly and fucking in short fast strokes at last he came and the look of delight on Cathy's face as she felt the force of his spunk splashing around her cervix was exquisite I could hold back no longer and unleashed my own spunk inside Liz. We all slumped on the couch together.