My hedgehog Bruno will try to get under my sisters hedgehog Fabio. He will go under with his nose by the private place. The thing is both of them are boys for sure. Bruno will also make these noises when his face is under fabio. The noise kind of sounds like a squeak but not a scared or pain squeek. Its weird. Every time we take them out together Bruno always runs over to Fabio and does this. Fabio doesn't seem to like it either and gets afraid. (we know this because he puffs up a little and hisses sometimes. What is wrong with Bruno?