This is a story about my wife’s transformation from a devoted wife to our dog’s bitch. In hindsight, I am not sure if it was a good idea to introduce her to dog cock. I will let the readers be the judge.

A little about us. I am 52M and she is 50F. 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. We had owned a cat which passed away just before we moved, but we had never had the space for a dog. There were wild cats on the farm, so we did not get another. By wild, I mean they were not house cats. But now we were finally able to get a dog.

I had always wanted a dog. No offence against bitches, but I prefer the personality of male dogs. 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 black Labrador.

My sister had a yellow Labrador growing up so I was familiar with what to expect. The first months were dealing with the usual house training and chewing etc. But overall, he was a very good dog and learnt fast. During the day, he shadowed either myself or Cath out on the farm whilst tending to the animals. He slept in the house, but a dog flap enabled him to investigate anything outside. He quickly became a very good guard dog. He became an integral part of our family who we both loved.

Reggie naturally began to mature sexually also. My wife was quite curious when she first saw his penis, or ‘lipstick’ as she called it. I’d playfully rub his 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 a nice-sized cock.

My wife would tell me to stop, but I think that she secretly enjoyed it. I’d tell her that Reggie needed it and that she should take over from me. She sometimes did, before quickly 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 she usually wanted sex from me that night.

One evening, Things took a significant progression when 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 and pointed it toward Cath. Reggie immediately began spurting cum.

My wife was shocked, but noticeably fascinated also. Reggie’s cock was fully exposed for her to see. He is significantly bigger than me. I am 5-1/2 inches. Reggie is 8-1/2 inches. My wife just stared at Reggie’s bright pink cock as he squirted pools of cum onto the wooden floor. She asked about his knot, which I explained was used to lock him into the bitch whilst he impregnated her. I could see that her mind was ticking over as she thought about it. “For how long?” she asked. “10, 15, 20 minutes or more, ” I replied. “Wow” she exclaimed, as she thought more about it.

Cath wanted sex that night. 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 earlier hand job.

My wife is quite reserved in public, but she is adventureous in the bedroom. She loves cum. She loves eating cum and cum facials. The more cum, the better she enjoys it. I could tell that she was impressed with Reggie’s cum demonstration. 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 her in the missionary position. I spread her legs wide as I pounded her hard and filled her pussy. As Cath lay there 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 stuck his nose between her legs.

Cath jumped in shock. I pretended to hold Reggie back, which gave Cath a sense of security. But I’d periodically allow Reggie to get close enough for another big lick as he lunged forward. I told Cath that Reggie was instinctively reacting to her smell. Cath gradually relaxed and allowed Reggie to lick her clean. I then put him outside and shut the door. Reggie whined a little bit to let us know his feelings.

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, and eventually lick her on the couch at night. Cath got very aroused by this. 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 bitch. I told Cath that there was no need to get a bitch. Reggie would happily have sex with her if she allowed it. Cath didn't agree to this immediately, but she didn't say no either. She began to seriously think about it. 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 obviously wanted Reggie to fuck her, which aroused me like nothing else.

Cath agreed, and backed out a few times before the fateful night came. We’d had sex as usual, whilst Reggie whimpered outside. We 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 thusting. 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 began to moan also. Reggie was only in 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 enough. Cath got a feel for Reggie’s size, and he managed to squirt some of his cum in and (mostly) around her pussy. Reggie then licked her clean.

Our evenings then became much more interesting. Cath 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. She'd get onto all fours on the floor. Reggie would lick her pussy a few times before mounting her. He needed assistance at first, but gradually became better at finding the spot. Cath also learnt to position herself for the best entry angle.

Reggie also became better at remaining in for longer and getting more cum into Cath’s pussy. I always followed after Reggie had made Cath orgasm a few times. Cath would be very wet. I might add that Cath has a big pussy. She was tighter when we met, but after having children, I definitely noticed a change. She had been stretched. She now needed a bigger cock like Reggie’s to fill her.

After a few weeks, Cath was ready for the knot. Reggie had previously slipped his knot in whilst thrusting, but he had never locked in place. He was getting much better now 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 a bit alarmed at first. She said that Reggie was really stretching her pussy and it was beginning to hurt. 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 full cum load into my wife’s pussy. Cath moaned softly with each pulse. She was knotted for several minutes before pulling out. I then went straight in to what felt like a bucket of porridge. But I loved it and I was soon adding my load to Reggie’s.

Cath later became accustomed to Reggies knot. She’d orgasm several times whilst she was knotted. She enjoyed being dominated and stretched by Reggie. She loved how he produced more cum than me. She enjoyed feeling his cock pulsate as he filled her. Reggie would generally remain knotted for about 10-15 minutes before releasing. 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. She knew what I meant. 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 towards Reggie. His big cock was hanging down. 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 remaining cum from his cock. She had obviously done a lot more with Reggie whilst I was gone. I positioned myself behind Cath and slid my cock into her cum filled pussy. I fucked her slowly as she swallowed Reggies cum. I was soon cumming myself.

Several months down the track, Cath is now Reggie’s bitch. She won't have sex with me without letting Reggie go first. She is usually sucking his cock whilst I fuck her from behind. Reggie’s big knot has permanently stretched Cath’s pussy to the point where she hardly notices me inside her now. But I enjoy feeling Reggie’s cum as I fuck Cath, and I am soon cumming myself.

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 to the sounds of Cath being fucked by Reggie on the floor beside the bed. I think her cunt is permanently topped up with Reggie’s cum. I initially made a rule that Reggie was to only have sex in the bedroom. But that rule has since been forgotten.

When Cath is out working or relaxing on the farm, Reggie follows her like a shadow. He inevitably sometimes becomes excited. Cath will find a secluded area with a nice patch of grass. She removes her jeans, gets down onto all fours and allows Reggie to service her. They remain knotted for what seems like an eternity. 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.

I will get my turn later that evening. I like to think that I am reclaiming my wife after Reggie. However, her gaping pussy is normally full to the brim with Reggie’s cum by the time I get a turn. My seed does not stand a chance against his superior volume.