I am have some concern over my unfixed female cats recent behavior. You see, we recently adopted a precocious male kitten, 6wks. Today I believe my unfixed, 2yr, female went into heat and has been overly affectionate. Her behavior seems motherly (grooming, helping on bed.) But she's also stalking him and yowling. Has anyone had this happen? Is she just being motherly or something else? She's never had a littee before.