I do it every month or so. If I don’t, they get a funny kitty-littery smell to them. Kind of dusty. Ick.
Neither of them like it very much. I fill the tub with warm water, chase one of them around the house, pick them up and dunk them in. I make sure the water is high enough to come up to their chin. I have to for Sebastian, because her hair is so thick, but short, so it’s like velvet - and almost friggin waterproof. So she gets the longest bath, unfortunately for her. It takes a lot of underwater rubbing to get her fully wet. Then comes the shampoo, which I usually take her out of the tub for, set her on a towel, lather her up with baby shampoo, then put her back in the tub for rinsing. I have a big novelty cup nearby especially for cat rinsing. I could use the tap, but I worry about the temperature changing while I’m struggling with a 12 pound cat. Sebastian is very muscular, and often puts in some heavy duty heaving and ho-ing, but I can manage her. She usually meows like it’s the end of the world. Then she gets towel-dried when I certain she’s thoroughly rinsed. Then it’s Kero’s turn.
Same method, pick up cat, dunk in tub. She is much smaller and more dainty than her tigress of a sister, but she’s a nipper. She won’t bite to hurt, but she will, if you expose a weak spot, give you a quick nip to let you know she is not pleased. She also howls like the world is ending. What a set of lungs on that cat. It is much easier to wet her, lather, and rinse her, since her hair is much finer than Sebastian’s. I usually take special care of her skin, adding a soothing oil (something from the vet) after the bath, since she has some allergies that act up sometimes and causes her skin to break out. Then she gets towel-dried and sent to join her sister in sulking.
I make sure the room is warm enough for them, and keep an eye on them to make sure they don’t start shivering, and they lick themselves for a few hours until they are completely dry. Then their fur is ever so soft to touch, and they have a pleasant, soft scent, and you can tell they feel good about it, because they suddenly become very cuddly and affectionate, purring and begging to be petted and held. For Kero, that’s nothing too new, because she’s very lovable normally, but for Sebastian it is completely out of character, because she’s pretty anti-touchyfeely. She loves you to play with her, but don’t you dare pick her up, touch her, or pet her if she didn’t ask you to! Lord love a duck she hates that. But she will roll around, purring like a fool, rubbing her face on every possible object… if nothing is handy, she’ll drag herself across the floor on her cheek.
So they are happy with the outcome… they just hate everything up to being dry again.