Sebi was neutered at 7 months because his testicle never dropped. Before the neutering he humped everything in sight - constantly. After the neutering, even with a belly full of stitches, he was still humping everything in sight. However, gradually that slowed down and eventually stopped completely. He doesn't do it at all any more, but he is still the same bubbly, energetic puppy. Now his twin sister humps him.
