Wife’s Transformation

This is a story about my wife’s transition from a devoted partner, to our dog’s lover.

In hindsight, I am not sure if it was a good idea to introduce my wife to zoophilia. Watching a dog fuck my wife is something that I had always fantasized about. However there are compromises that I have had to make. I will let you readers be the judge.

I am Brian (52) and my wife, Cath is 50. We have been married for 25 years. Our youngest child left home a few years ago. We then moved onto an acreage and started raising chickens, ducks, pigs and sheep. I had always wanted a dog, however, we had never had the space for one. We were finally able to get a dog after purchasing the farm.
I knew what I wanted and had arranged to pick up Reggie as a puppy a few months before we were due to move to the farm. He is a beautiful Great Dane/Bull Mastiff cross.
The first months were dealing with the usual house training and shoe chewing etc. But he learnt fast.
During the day, he shadowed either myself or Cath around the farm. He slept in the house, but a dog flap enabled him to investigate anything outside. He was an extremely good guard dog and was very protective of his territory. He was also very protective of Cath. He became an integral part of our family who we both loved.
Reggie naturally began to mature sexually also. He had a huge set of testicals which stuck out like the proverbial “dogs balls”. We both laughed at the this. My wife was curious when she saw his penis. I’d playfully rub Reggie’s belly with my foot as we watched TV in the evenings. There wasn't much to see at first, but by the time he was 12 months old, his shaft would extend enough to reveal his nice looking cock.
My wife would tell me to stop, but I think that she secretly enjoyed seeing it. I’d tell her that Reggie enjoyed it and that she should take over from me. She sometimes did, before becoming embarrassed and suddenly stopping.
I progressed to stroking his sheath with my hand. We’d then follow the same routine. She’d feign disgust and tell me to stop. I’d tell her to take over, which she sometimes did for a brief moment. I suspect she’d stop when she sensed herself getting aroused by it.
One good outcome of this was that Cath usually wanted sex with me afterwards. She loved being taken from behind. I’d pound her hard until I emptied my load deep into her pussy.
Reggie was fully grown at 2 years old. He was a big dog with a muscular physique. He had a smooth shiny coat and a big menacing head. But he was a gentle giant who could lick you to death.
One evening, things took a significant progression. I was rubbing Reggie’s sheath and his cock was almost fully extended. My wife told me to stop or he might cum. I informed her that his knot needed to come out for that to happen. She had no idea what the ‘knot’ was. I then pushed his sheath back to expose his knot. I took hold of the base of Reggie’s shaft. Reggie immediately began spurting cum.
Cath was shocked, but noticeably fascinated also. Reggie’s cock was fully exposed for her to see. He is a lot bigger than me. I am 5-1/2 inches. Reggie is 10-1/2 inches. My wife just stared at Reggie’s bright pink cock as he squirted pools of cum onto the wooden floor. She commented on the seemingly endless supply of cum coming from his cock. She asked about his knot, which I explained was used to lock him into the bitch whilst he impregnated her. I could see that Cath’s mind was running wild as she thought about it.
“For how long?” she asked.
“10, 15, 20 minutes or more, ” I replied.
“Wow” she exclaimed.
Cath wanted sex soon after. I felt sorry for Reggie who didn't get to join us, but at least he had been able to relieve some tension with his hand job.
My wife is quite reserved in public, but she is adventureous in the bedroom. She is fascinated by cum. She loves eating cum and cum facials. The more cum, the more she enjoys it. I could tell that she was impressed with Reggie’s cum volume. She also likes to be dominated. She expects the male to take the lead and fuck her the way he wants to.
One night whilst having sex, I discreetly left the door ajar for Reggie. I finished inside Cath who was in the doggystyle position. She remained in position to gather her breath. I discreetly tapped the corner of the bed to motion Reggie up. He quickly jumped onto the bed. He could obviously smell the intoxicating aroma of cum juices in my wife’s pussy and he immediately started licking her with enthusiasm.
Cath jumped in shock and rolled over to her back. I pretended to hold Reggie back, which gave Cath a sense of security. But I allowed Reggie to get close enough for another big lick as he lunged forward between her legs. In all honesty, he was actually quite difficult to hold back. I told Cath that Reggie was instinctively reacting to her lady smell. Cath said that it was disgusting and closed her legs. I put Reggie outside and shut the door. Reggie whined for a bit to let us know his feelings, but Cath was not ready to let him lick her yet.
Reggie began trying to sniff Cath’s crotch a lot more often after that night. I told Cath that she must not allow him to do it without her permission. This was a bit of reverse psychology. Cath allowed Reggie to sniff her pussy when she was wearing shorts or pants around the house.
In the evenings, she’d wear a nightdress with no underwear. She was more hesitant to let Reggie under her dress. Reggie would sneak a quick sniff every now and then, and Cath would push him away.
I asked her if it felt good. She admitted that it did indeed feel nice. I told her to allow Reggie to lick her if she enjoyed it. Cath allowed Reggie to lick her more and more over time. I’d hold Reggie’s knot whilst he tried to lick Cath on the couch. He’d squirt cum onto the floor. Occasionally, I’d direct it towards Cath’s feet, which surprised her at first. She’d move her foot and ask “Is that his cum?” I knew how much Cath loved cum, and before long she was allowing me to direct Reggies load onto her legs and feet. Combined with Reggie’s enthusiastic licking, Cath would get very aroused. We’d go to the bedroom to have sex whilst Reggie whimpered at the door.
Cath felt guilty about “poor” Reggie. She said that we should get Reggie a female dog. I told Cath that there was no need to get a bitch. Reggie would happily have sex with her… if she allowed it. Cath was a bit shocked and she didn't agree to this immediately. But she didn't say no either. She raised various aspects over several days, such as
Was Reggie’s cock too big?
Was it clean?
Could she catch anything? Could she get pregnant?
She was obviously seriously thinking about it. She obviously wanted Reggie to fuck her, which I did my best to promote and encourage.
Cath agreed to go through with it, and then she backed out several times before the fateful night came.
We’d had sex as usual, whilst Reggie whimpered outside. I then let him in. Reggie jumped up onto the bed. Cath petted Reggie as he licked her face and moaned excitedly. He was sniffing her pussy and jumping up onto her as she sat on the bed. Cath then got onto all fours. Reggie immediately mounted her and began thrusting. Cath slumped under Reggies weight. I quickly moved closer to assist. Reggie was thrusting haphazardly and losing balance. I held him in position as he found Cath’s pussy. I could tell he had found it because his thrusts became deeper and more direct. Cath also cried loudly each time Reggie penetrated her pussy. Reggie was only in her pussy for a few seconds before losing his position. He tried again and had a similar result. The soft bed wasn't making it easy for Reggie, but he was persistent. Cath got a feel for Reggie’s size, and he managed to squirt some of his cum in and (mostly) around her pussy. Cath laid down on her back. She apologised to Reggie for a less than ideal first fuck and let him lick her clean.
Our evenings then became much more interesting. Cath had overcome most of her reluctance and she would let Reggie lick her pussy on the couch. She’d get highly aroused and she’d lead me to the bedroom for sex. I suggested that she should let Reggie go first. My dream was to have seconds after Reggie. Cath would get onto all fours on the floor. Reggie would sniff and lick her pussy a few times before mounting her. He needed assistance at first, but gradually became better at finding her pussy. Cath also learnt to position herself for the best entry angle. She’d slump to the floor with her big ass pointing upwards.
Reggie also became better at remaining in for longer after her stopped thrusting. Cath confirmed that she could feel Reggies cock throbbing as he pumped cum into her pussy. She orgasmed several times at the feel and thought of this.
I always followed after Reggie. Cath would be very wet and full of Reggie's cum. I might add that Cath has a big pussy. She was a bit of tighter when we met, but after having children, I definitely noticed a change. She had been stretched. She needed a bigger cock like Reggie’s to fill her. She loved feeling Reggie slightly stretching her pussy.
After a few weeks, Cath was ready for Reggie’s knot. Reggie had momentarily slipped his knot in whilst thrusting, but he had never locked it in place. His thrusting had become more calculated and purposeful. He was getting much better at staying in for a few minutes each time, albeit without being knotted. This changed one night when he thusted deep into Cath’s pussy and held his knot inside her as it grew to full size. Cath was alarmed at first. She said that Reggie was really stretching her pussy and that it was beginning to hurt. Cath has a big pussy, but Reggie’s knot was a challenge even for her. Reggie’s knot was almost the size of a tennis ball and I could see it stretching Cath’s pussy lips. I reassured her that it was OK and that she would get used to it. I then held Reggie in place as he pumped his cum load into my wife’s pussy. Cath moaned softly with each pulse. Reggie’s knot sealed Cath’s pussy tightly and did not allow any cum to escape. I told Cath that everything was fine and she just needed to wait for Reggie’s knot to deflate before allowing him to withdraw. Reggie instinctively knew what his job was. He patiently remained knotted to Cath as he attempted to impregnate her. Cath relaxed after a few minutes and began to enjoy the experience. They were knotted for several minutes before Reggie pulled out.
I then went straight in to what felt like a bucket of warm porridge. I loved it and I was soon adding my load to Reggie’s.
Reggie usually knotted with Cath from then on. She slowly became accustomed to his large knot. She’d orgasm several times whilst they were knotted. She enjoyed being dominated and stretched by Reggie. She enjoyed feeling his cock pulsate as he filled her. She loved how he produced a large volume of cum. They would generally remain knotted for about 10-15 minutes. I was enjoying my turn after Reggie also.
I went away a few times a year to visit my elderly mother. I was due to go again, a few months after Reggie had first mounted Cath. I would be gone for 10 days, but I assured Cath that Reggie would look after her. On my return, I was excited to have sex with Cath. I had a good cum load built up. Maybe not enough to rival Reggie!, but I was looking forward to releasing it. Reggie knotted Cath as usual that evening. I watched on as Reggie thrusted and made Cath’s hanging boobs jiggle. Reggie no longer needed any assistance. They were knotted for over 20 minutes. When he released from her, a stream of cum flowed from Cath’s pussy. I went to position myself behind Cath, however she spun back towards Reggie. His big cock was hanging down. It was throbbing as he continued to squirt cum. Cath turned around and took hold of the base with her hand. She pointed his cock to the side and leant in to began sucking the tip. Reggie stood still as Cath licked and sucked the cum from his cock. She had obviously done a lot more with Reggie whilst I had been away! Cath was still on all fours as she sucked Reggie. I positioned myself behind Cath and slid my cock into her cum filled pussy. I fucked her slowly as she sucked Reggie’s big cock. All of my dreams had come true at that point. But my sex life with Cath and Reggie had peaked. Since then Cath has become progressively closer to Reggie and she has progressively distanced herself from me.
Several months down the track, Cath has now become Reggie’s bitch. Cath is infatuated with him. She won't have sex with me without letting Reggie go first. Reggie’s knot has permanently stretched Cath’s pussy. She hardly notices me inside her. But I still enjoy feeling Reggie’s cum squelch around as I fuck her.

Reggie sleeps on the bed with us every night. Cath still loves me as a husband, but Reggie takes priority with regard to sex. She makes sure he is always satisfied. I sometimes wake in the middle of the night to the sounds of Cath being fucked by Reggie on the floor beside the bed. Cath fucks Reggie often enough to keep her cunt permanently topped up with his cum. I initially made a rule that Reggie was to only have sex in the bedroom. But that rule was quickly abandoned.
When Cath is out working or relaxing on the farm, Reggie follows her like a shadow. He inevitably becomes excited at some point during the day. Cath knows that when he starts sniffing her crotch and pawing at her legs, Reggie wants sex.
Cath has a favourite secluded area to bring Reggie. It is in a clearing at the end of a path through woodland. It is in the lower corner of the property and can be be seen from the right vantage point. The small clearing has a carpet of lush green grass, which I keep mown. I periodically check the clearing throughout the day, whilst I am doing other work. More often than not, I spot Cath and Reggie at the clearing each day. I move closer for a better vantage point through the woodland. Cath removes her jeans and gets down onto all fours. Reggie mounts her and begins thrusting with purpose. Cath moans loadly with each thrust. Less than a minute later, Reggie stops thrusting. He remains fully inserted as his knot grows to full size. Cath holds onto Reggies front paws to help balance him. They remain knotted for what seems like an eternity. Cath turns her head to the side and kisses Reggie whilst they are knotted. She tells him that he is a good boy. She tells him that she loves him. I rub my cock with envy.
Afterwards, they lie on the grass together resting. If his cock is still out, she might softly lick and suck on it. Otherwise, she just cuddles Reggie. I watch from a distance. I know not to interrupt their private time together.
I will get my turn later that evening.
I like to think that I am reclaiming my wife after Reggie. However, her big pussy is always full to the brim with Reggie’s cum by the time I get my turn. Cath understands that her marital duty is to be sexually available to me. She obliges me by simply getting onto all fours if I begin to become intimate with her. Her pussy is very loose and it is invariably always full of Reggie’s cum. I take hold of her hips and I pound her hard. I think about how much of a slut she has become. I think about how she submits to our dog and lets him fuck her at will. I try to assert my dominance as her true husband. But I cannot fuck her nearly as hard or fast as Reggie can. She can hardly feel my cock. Cath silently waits for me to cum. She is kind enough to not say anything about my performance. I pull her hips close as I ejaculate. I unload as deeply as I possibly can into her cunt. But realistically, my seed does not stand a chance. Reggie’s immense volume of cum has filled Cath’s pussy. And with his superior size, Reggie is also able to unload his semen directory into Cath’s womb.
I enjoy seeing Cath being fucked by Reggie. And I am grateful that I am able to enjoy her pussy afterwards. But I also feel inadequate. Cath obviously enjoys Reggie’s cock more than mine, which is something that I have to accept.