I generally dont brush my short-haired cats except for their own pleasure - one likes his back doing but is not so keen on his underneath and the others consider brushes the devils invention and scarper at the first site of one. However I did once have a kitten that developed into a long hair- a free to good home farm kitten that turned into a long haired silver of the sort people pay huge money for - we were worried she would get stolen but unfortunately something else happened - she disappeared and we searched and found her hidden in a dark shed corner where she had died. Anyway because of her coat she needed daily brushing which she was fine with except for her "armpits" which were ticklish (at least thats what it seemed like). She used to get bad mats under her armpits and in the end the only way I could sort it was to use baby nail scissors to trim the fur back around those areas and keep it short.
