Kittens groom each other naturally, and older cats that aren’t even related but still get along well also spend time grooming one another. Often they reach the areas that are hard for a cat to get to by themselves, like the nape of the neck, underneath the chin, the top of the head and inside the ears. Exchanging scents via grooming also increases the connection between a pair of felines.
However, when your cat licks you, he/she’s paying you a giant size admiring comment
An abrasive tongue-bath from your feline is a sign that he/she feels absolutely safe in your presence. You are truly a member of kitty’s family, and he/’she reinforces that by cleaning you like his/her mother cleaned him/her when he/she was a kitten.
Your kitty's tongue-bath feels like sandpaper rubdown because it’s covered with papillae -- backward-facing hooks made of keratin, the same substance that makes your kitty’s claws. The papillae aids in helping cats rasp meat off bones, and they also lend a hand in grooming by acting like a comb to pull out debris and loose fur.
Some cats get so anxious that they begin licking spontaneously. Cats who lick themselves bald are often trying to comfort themselves. Other obsessive kitties might lick or suck on plastic, fabric, or even your skin.
To stop your cat from licking you, distract him/her. Be aware of the signals that your cat gives before he/she begins licking away on you. Before he/she starts washing your arm pink, redirect his/her attention with a favorite toy. Play is always excellent. It keeps your cat alert, fit and trim, and it strengthens the attachment between the both of you. Also, the chemicals released during exercise help your cat to calm down and feel content.
It’s not easy to retrain a cat that has gotten used to performing a customary behavior such as licking. Remember to stay gentle and never ever punish kitty for loving you so.