[NCyorkie]

I have two...the older one was already altered...the younger one is getting done as soon as the vet says yes. At 12 weeks his testicles had already dropped and he tries to hump things!! My older one has NEVER done that! I wouldn't recommend putting them together unless they are nuetered...mine are starting to get along but they play hard and are extremely jealous of each other....I would imagine two unaltereds would have an extreme dominence problem.