How long does your dog last?

[honest_pervert]

When it comes to male dogs its pretty well known they pump and hump for a short time then proceed to knot. Are there different breeds out there that fuck more and knot less and vice versa? Do some breeds have more stamina than others? Are some breeds predisposed to knot longer? Or end the end is it all up to the individual dog?

 

[pes]

I have had experience with a couple of dogs. From my observation the larger the dog is the longer the penis (and knot) stays erect. And obviously the more cum and fluids there is.
How long the knot stays swelled also depends a lot on how you hold it and stimulate it. If you do it right you can even bring a deflating penis back into full erection and even a second ejaculation.
How much and how long the dog humps depends greatly on how horny he is. My dog humps a lot more after a few days without sex (and cums more) than if I suck him 3 times a day. But you can also deplete his horniness if you make the foreplay too long.
I do believe this is also highly individual and can not be easily determined by breed.