Breeding

There are many examples of preparing your dog for breeding. One common method was to tie the boy bucked over a stool this picture is fine for the Master but the stool should be the other way if a dog is gonna fuck him. You get a better idea with the picture below. With the stool length ways you can tie the boys legs apart for better access and secure his nuts to the stool for when he tugs and pulls  - this can also be to his collar on the other side forcing him to stay in position.
You might also consider suitable and effective gags, hoods are also good but be aware of breathing as the mutt gets excited. It is usually better to have him see exactly what is coming his way and for there to be little he can do about it.

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