I have 7 cats. 2 older cats and 5 kittens, they were born in May. Recently all of the kittens have been meowing alot more then usual and 2 of the male kittens are in a "mounting" phase but tonight I've noticed one of the males is really bugging one of the females, like chasing, mounting, biting neck, now he's starting to do it to the males as well, and he's meowing/chirping (i call that short meow a chirp i lol) alot. Is it just a dominance thing or is my female kitten in heat? And could this behavior be stopped some how? Help me please!