I'm not really sure why you would want to know but it can happen naturally when they are excited or even nervous sometimes. There's the whole mating thing. When AI's are done it's done manually. ;-)
Not, really it will naturally happen when on the female.
A female dog that is in heat and ready to be bread will do the trick.
What you need to do, is the following,
1) give the dog a B.J
2) introduce him to your girlfriend
3)let him lick her out
4) then get him to hump your gf and the he'll get one
;)
1) give the dog a B.J
2) introduce him to your girlfriend
3)let him lick her out
4) then get him to hump your gf and the he'll get one
;)
I think that when Son sees Aimee with her clothes off it makes him very excited. Go to Aimees house and have sex with her dog.