Winner #55 - Puppy and Kitty (Patreon)

"It looks like the breeding was finally successful!"

"It certainly looks that way, yes," he said, approaching the kneeling feline boy.  The plug was large enough, finally, that none of the canine boy's ejaculate had seeped out, giving him a rather paunchy appearance.

Between his legs was his caged manhood, something that had been done to help him get into the role - that role being "bitch in heat".  He hadn't been let out of it since the pairing began having their breeding sessions, and the pair was successful in... mating each time, regardless, somewhat to the detriment of the feline's anal sphincter.

The program had been running successfully for some time, producing feline/canine hybrids, but this particular pairing kept complaining that they were "incompatible".

As neither participant failed to climax during their breeding sessions - the feline into his kitty cock cage, the canine into his feline's rectum, the researcher failed to understand how such an arrangement could be called "incompatible" - and when he offered each of them a chance to switch to a new partner, they sheepishly declined.

Ah, young love. 

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Winner #56 is Futa Pro!