OK, I know when kittens play they are often going through a learning process and so emulating adult behaviour, but............ Smidgen, this morning, mounted Esther. The full-on mount with biting of the back of the neck. Not play wrestling but the full sexual posture (i have seen cats mating before). She didn't seem overly perturbed, if a little bemused,but does this mean my little man is maturing a little too fast??? He was born 8 May so I guess that makes him nearly four months. (We are seeing the vet this coming week for his second shot so can ask them about it but thought you guys might have views on the subject.